Prof. Dr.-Ing. habil. Manja Krüger
Prof. Dr.-Ing. habil. Manja Krüger
Werkstofftechnik
- Legierungskonzeption für metallische Hochtemperaturwerkstoffe
- Biokompatible refraktärmetallbasierte Werkstoffe
- Mechanische Eigenschaften von metallischen und intermetallischen Werkstoffen
- Kriechphänomene mehrphasiger Hochtemperaturwerkstoffe
- Versagensmechanismen von metallischen Werkstoffen
- Mechanisches Legieren von metallischen Pulvern und intermetallischen Verbindungen
- Pulvermetallurgische Herstellung von einphasigen und mehrphasigen Werkstoffen
- Wärmebehandlungen und Oxidationsversuche
- Erstarrungsphänomene hochschmelzender metallischer Werkstoffe
Current projects
High-energy mechanical shredding as a contribution to a sustainable, fully closed, energy-saving closed-loop process as part of the "SmartProSys" initiative
Duration: 01.03.2025 bis 29.02.2028
The interdisciplinary research initiative SmartProSys (Smart Process Systems for a Green Carbon-based Chemical Production in a Sustainable Society) aims to transform chemical and biotechnological production processes in a sustainable way. The aim is to transform energy-intensive, linear process chains based on fossil raw materials and energy sources into sustainable, completely closed, energy-saving cycles. The core question relates to plastic waste as well as biogenic residues and waste materials, which are to be systematically and efficiently converted into valuable molecules for new products. The sub-project relates to mechanical comminution processes using high-energy mechanical impact processes and their optimization. In addition, research is being conducted into how powdered plastics can be processed into new products.
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DiveDeEP: Identification of microstructure-property relationships of dispersion-reinforced high-performance materials
Duration: 01.05.2024 bis 30.04.2027
The aim of the project is to develop and qualify dispersoid-reinforced high-temperature resistant alloys for use as potential structural materials in the aerospace industry. Increased efficiency through increased operating temperatures and reduced weight lead to improved efficiency of turbines.
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TACTIC
Duration: 01.01.2024 bis 01.02.2027
Scientific goals
The idea of co-evolution at the human-technology interface is based on the fact that both the biological side and the technical side of an interface are not only dynamic and adaptive, but also take account of the other side in their adaptivity. Investigating this mutual influence leads to a deeper understanding of the causes of undesired processes, such as the maladaptation of inflammatory responses to unwanted changes in implant surfaces. This understanding then opens up new strategies to support desired processes in the sense of co-evolution. These include the possibilities of adaptive technologies and sensor approaches that can adjust to individual dynamics in the biological system, or the development of process-aware technologies that can bring about desired dynamics in the biological system.
Intended strategic goals
The modules of the TACTIC graduate school are designed to enhance translational expertise in the fields of medical technology, sensor technology, and artificial intelligence (AI). The goal is to strengthen research, development, and innovation activities on site. The aim is to closely interlink life sciences and engineering across all modules in order to facilitate future collaborative projects in this area. In addition, the integration of AI is intended to strengthen the profile area of medical technology. By internationalizing the research focus areas, TACTIC enables networking with EU partners, which is an important prerequisite for the alignment of consortia in order to strengthen science in Saxony-Anhalt.
Work program
The graduate school comprises three modules with a total of 9 doctoral students. A thematic network is established through doctoral topics, where at least two thematic modules are assigned concurrently. Each of the three thematic modules - Interaction, AI and Interface - is endowed with three doctoral positions (100%). The aim is to qualify our doctoral students for both the academic and private sector job markets. Interdisciplinary skills are to be imparted through doctoral seminars. Annual thesis committee meetings and TACTIC symposia support the development of doctoral students. An international network is to be established through presentations at international conferences and self-organized symposia.
AddBluff4NH3/H2: Additive manufactured bluff-body burner, characterized by detailed simulations and experiments for fuel-flexible, stable and safe combustion of NH3/H2 mixtures
Duration: 01.01.2024 bis 31.12.2026
This project is a joint project within the framework of the DFG SPP 2419 "A contribution to the realization of the energy transition: Optimization of thermochemical energy conversion processes for the flexible use of hydrogen-based renewable fuels through additive manufacturing processes".
In this project, an additively manufactured bluff-body burner for the fuel-flexible, stable and safe combustion of NH3/H2 mixtures is considered. Accurate numerical simulations and detailed experiments are carried out to investigate the combustion characteristics and pollutant emissions. The burner design is then optimized (in terms of shape, size and position of the flame holder) to achieve efficient combustion behavior. Open and closed burner geometries are considered. The side of the flame holder in contact with the flame and other high temperature parts are produced by additive manufacturing using initially Ni-based alloys and later ultra-high temperature resistant refractory metal alloys to allow rapid geometry variations. The dynamics of the turbulent flame, the interactions between flame and wall, the limit of stable combustion, flashback and heat release are investigated. Finally, an optimal bluff-body burner design is developed for stable, safe, fuel-flexible and clean combustion of NH3/H2 as a mixed fuel.
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FlexiDS 2.0: Directed growth behavior of novel eutectic V-Si-B alloys - characterization and properties for high temperature applications
Duration: 01.12.2023 bis 30.11.2026
V-Si-B alloys have been the focus of scientific material development for several years. Due to their outstanding specific mechanical properties, these alloys represent a promising alternative to Ni and Mo-based materials in the field of high-temperature alloys. In terms of its microstructure, the V-Si-B alloy system has some interesting similarities with the well-studied Mo-Si-B sister system. Both alloy systems form a ternary eutectic in the metal-rich region (e.g. vanadium) from a solid solution, V(Mk), and the two intermetallic phases V3Si and V5SiB2. Directional solidification allows the eutectic to be "grown" along the direction of solidification, which results in a strong directional dependence of the resulting mechanical properties (strength, creep resistance). Similar to Ni-based superalloys, these could be specifically adjusted for an application-relevant load case. The proposed project investigates the microstructure formation and the resulting properties (direction-dependent strength and creep properties) of directionally solidified, novel eutectic V-Si-B alloys. For this purpose, the zone melting process will be investigated and analyzed both ex-situ and the direct transition from the liquid to the solid phase at the moment of directional solidification in-situ.
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High-Performance FeAlCuNiTi-Based Metal Matrix Composites for High-Temperature Applications
Duration: 01.07.2024 bis 30.06.2026
As part of the scientific and technical collaboration, the aim is to produce high-performance metal-matrix composites based on multi-component materials for high-temperature applications. In particular, the production of multicomponent materials is simplified by a combination of classic powder metallurgy and spark plasma sintering processes and should guarantee significantly improved (mechanical) properties. This method makes it possible to implement a material design tailored to specific applications and at the same time represents a scientific and technological challenge. In addition, the addition of ceramic particles makes it possible to increase the strength of the alloys. The technology to be tested could be applied on an industrial scale in the future.
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Alloy design for improved materials properties
Duration: 01.07.2023 bis 30.06.2026
Metallic materials for applications as structural materials, e.g. in corrosive environments at different temperatures, must have a wide range of properties. By adding alloying elements, the properties can be influenced over a wide range. For example, the strength of molybdenum materials can be significantly increased by adding even small amounts of silicon. Other properties, such as tribological abrasion, the oxidation or corrosion rate and cyclic strength, are also heavily dependent on the selection, concentration and combination of alloying elements. In addition, the heat treatment condition of the alloys plays a major role in adjusting the range of properties to suit the application. For materials in the medical sector, e.g. implant materials, properties under varying stress conditions (cyclic loading) also play a decisive role. The aim of this project is to modify materials in such a way that hardness and wear resistance are increased and static and cyclic stress resistance is improved without reducing oxidation and corrosion resistance. The microstructure-property relationships are specifically influenced in order to create optimum conditions for the subsequent application.
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Elucidation of microstructure-property relations of novel refractory metal based multi- component alloys for biomedical applications
Duration: 01.04.2025 bis 31.03.2026
This project brings together the expertise of the chair "High Temperature Materials" at OVGU with the groups of Prof. H. Stone and Prof. N. Jones at the Department of Materials Science and Metallurgy of the University of Cambridge, UK.
The project focuses on materials development and understanding of microstructure-property-relations between the microstructure of multi-component metallic materials and their mechanical properties. Selected materials are examples from the class of biocompatible Ti-Nb-Ta alloys.
Development and characterization of eutectic V-Si-B alloys with improved specific mechanical properties: role of the new V8SiB4 phase
Duration: 01.04.2024 bis 31.03.2026
Vanadium silicide materials represent a potential alternative to currently used high-temperature materials, in particular due to their excellent specific mechanical properties. For example, V-Si-B alloys from the vanadium-rich region of the three-material system consist of a ductile vanadium solid solution (V-Mk) and the two intermetallic phases V3Si and V5SiB2. However, this alloy system, which has been little researched to date, has some surprising similarities to its well-studied neighboring system Mo-Si-B in terms of microstructure. In initial preliminary tests on V-Si-B alloys, significantly better specific compressive strengths were achieved in the temperature range from 600 °C to 900 °C compared to Ni-based alloys. However, the mechanism of phase formation and the correlation of the microstructure-property relationships are still completely unexplored. The primary objective of this project is the development of novel V-Si-B alloys for high temperature applications. The aim is to develop ternary-eutectic alloys. In a series of V-rich binary and ternary test alloys, the phase formation and stability from the melt to the homogenized microstructure will be investigated. In the 2nd funding phase, research will focus on the significance of the newly discovered phase V8SiB4.
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Oxide dispersion strengthened and oxidation resistant Vanadium alloys
Duration: 01.07.2022 bis 31.10.2025
The complex oxidation behavior of vanadium is the reason why vanadium-based alloys cannot be considered for use at high temperatures, despite their high strength and low density. In addition, vanadate changes very easily between different oxidation states and thus extremely accelerates the high-temperature corrosion of Ni, Co or Fe-based materials, especially when it is present in molten form. This also rules out the use of current vanadium alloys in the environment of these materials.
In order to make vanadium alloys usable at high temperatures, a completely new and innovative approach to oxidation protection with simultaneous oxide particle reinforcement is therefore to be pursued: The development of Mg- and Ca-containing oxide particles for the production of oxidation-resistant ODS vanadium-silicon alloys. The ODS particles introduced in sufficient concentration should prevent liquid phase formation at high temperatures. At the same time, the ODS particles are expected to have a strength-enhancing effect, which is to be quantified in the potential application area of such alloys from room temperature to 1050 °C.
The project aims to clarify (1) up to what volume fraction of MgO, CaO or magnesium orthosilicate particles homogeneous microstructures can be achieved in vanadium materials, (2) how high the necessary MgO, CaO or magnesium orthosilicate concentration is in order to prevent liquid phase formation or to provoke a self-protecting mechanism, (3) how great the strength-enhancing effect of the addition of oxide dispersoids is and how the ODS particles affect creep formation. to provoke a self-protecting mechanism, (3) how great the strength-enhancing effect is through the addition of oxide dispersoids and how the ODS particles affect the creep behavior of vanadium alloys.
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Refractory metal-based alloys with integrated coatings for aerospace applications
Duration: 01.06.2022 bis 31.08.2025
The efficiency of gas and aircraft turbines could be increased considerably by a slightly higher gas inlet temperature, which would result in a significant improvement in the environmental balance and use of resources. The nickel-based superalloys currently in use are very limited in this context due to their comparatively low melting temperature, which is why hardly any improvements can be achieved with this class of materials. The most promising candidates for replacing nickel-based superalloys are the refractory metal-based Mo-Si-B alloys that have been under discussion for some time and whose range of properties is most balanced both at room temperature and at higher temperatures. In addition, earlier studies have shown that the addition of vanadium within these high-temperature alloys leads to a significant reduction in density, which would predestine them for possible use in aerospace technology.
The biggest challenge for these alloys is still their oxidation resistance, which needs to be improved in this respect. In particular, the range between 600 °C and 800 °C must be regarded as extremely critical, as this is where so-called "pesting", a catastrophic oxidation failure, occurs. From a temperature of 1000 °C, however, a protective borosilicate layer begins to form on the surface after a certain time, which protects the material from further oxidation.
The main focus of this project is the development and optimization of Mo-40V-9Si-8B materials, which are additionally provided with a coating [MoSi2/RHEA Mo-Ta-Ti- (Cr, Al)] in order to meet the requirements of the aerospace industry in terms of mechanical properties and oxidation resistance. To this end, a suitable alloying strategy must first be developed for both the substrate and the coating material. Subsequently, a corresponding powder metallurgical production route is to be established via mechanical alloying. The base material is to be produced via a corresponding sintering process, while the oxidation protection layer is to be applied by means of high-performance cathode sputtering or pack cementing. In the final step, various tests (microstructure analysis, mechanical properties, oxidation resistance, etc.) will be carried out on both the uncoated and coated material in order to test the applicability of the developed material system as a structural material.
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Initiation of international collaboration on the crystal structure, microstructure and mechanical properties of precipitation hardened Fe-Cu-Ni-Ti-Al complex concentrated alloys
Duration: 01.07.2024 bis 30.06.2025
Since the CCAs are being actively explored for next-generation structural materials for high-temperature applications and therefore, they should have a high creep resistance besides that a comprehensive understanding of their creep and fracture behaviors is also indispensable.
Among the several anomalies existing in the creep behavior of HEAs, the foremost important is the stress exponent, n, calculated from the Berkovich nanoindentation creep tests turns out to be much larger than that calculated based on the uniaxial stress relaxation and spherical nanoindentation creep tests, and this could not be explained using classical creep theory for crystalline metals. It is still uncertain whether the classical creep theory for conventional metals are applicable for the HEAs.
The Fe32.3Al29.3Cu11.7Ni10.8Ti15.9 CCA, developed by OVGU-HT Materials group – whose compression behavior was studied under a constant displacement test with quasi static strain rate between room temperature (RT) and 1100°C revealed a stable single phase bcc microstructure with precipitates at the grain boundaries. The high temperature deformation and creep behavior of this material will be studied during a 3 months visit of Prof. Puspendu Sahu, Professor of Physics), Jadavpur University, Kolkata, India. In addition, TEM analyses are planned to perform at Jadavpur University with the deformed materials to get insights into the deformation mechanisms.
Development of novel multi-component material systems for biomedical applications
Duration: 01.07.2021 bis 30.06.2025
Multi-component materials are known as alloys which are based on a variety of elements in equiatomic or highly concentrated fractions, instead of the concept of alloys based on one mayor element. Materials classes like High-Entropy alloys (HEAs), Medium-Entropy alloys (MEAs) and Compositionally Complex Alloys (CCAs) belong to these systems. The special feature of multicomponent alloys is due to the physical and thermodynamic conditions (high entropy effect, cocktail effect, sluggish diffusion effect, etc.), which lead to outstanding mechanical and physical material properties. Especially refractory elements such as Mo, Nb, Ta and Ti have emerged as essential components regarding the development of high-temperature materials. However, an additional aspect has rather moved into the background: the biocompatibility of many refractory metals. This property is considered as a key aspect in the development of multicomponent alloys for biomedical applications. In the course of this research project, materials conception and alloy development is carried out at the chair of high-temperature materials of Otto-von-Guericke University Magdeburg, whilst biocompatibility experiments and validation are conducted in cooperation with the chair of experimental orthopedics under supervision of Prof. Dr. rer. nat. Jessica Bertrand. The aim of this project is to develop a novel multi-component alloying system with outstanding mechanical properties, combined with optimized biocompatibility with respect to different biological cells and tissue for the use in biomedical applications.
Completed projects
ME-MAT: Production-related optimization of metallic high-temperature materials
Duration: 01.01.2024 bis 31.03.2025
The overarching aim of the ME-MAT project is to establish a network between cooperation partners from Germany, Poland, Bulgaria and Hungary.
The scientific focus is on adapting powder production for additive manufacturing processes. As the envisaged multiphase material from the group of refractory metals has an extremely high melting temperature and is also very reactive under environmental conditions, challenging research questions arise.
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Kriechverhalten von gerichtet solidified Mo-Werkstoffen mit und ohne Beschichtung; High temperature mechanical behavior of advanced directionally solidified multi-phase Mo-alloys
Duration: 01.04.2020 bis 31.12.2024
As part of the DFG joint project launched in 2020, complex, multifunctional oxidation protection coating systems were developed for the material protection of molybdenum (Mo)-containing refractory metal alloys. Such alloys exhibit higher thermal stability than the nickel-based superalloys previously used as turbine materials. With sufficient long-term stability, they could therefore be operated in turbine applications at temperatures 150 K higher, which would result in an increase in turbine efficiency. However, the oxidation of Mo and the evaporation as Mo oxide are proving to be a problem, which inevitably leads to the mechanical disintegration of a corresponding component and requires protective coatings of a few tens to a few hundred micrometers thick, preferably with a self-healing function to prevent cracking in the coating.
Such a coating system, consisting of a so-called preceramic polymer - an oligomeric chemical compound that can be converted into a ceramic by heat treatment -, particulate fillers such as silicon, boron and hexagonal boron nitride, was tested in long-term oxidation experiments and shows promising properties on selected Mo-containing alloys.
As the layer thicknesses cannot be extended indefinitely, a supplementary application was submitted to the above-mentioned application in order to combine the coating process based on filled preceramic polymers with the so-called pack cementation process - a coating process in which protective components such as boron and silicon are applied from the powder bed using transport agents via diffusion processes in the gas phase - and thus a) to further increase the layer thicknesses and b) the effectiveness of the protective layers obtained. Initial results are promising and show that it is possible to combine both processes to produce oxidation protection coatings with thicknesses of more than one hundred micrometers. The work on combining both processes is being systematically investigated as part of a Walter Benjamin Research Fellowship funded by the DFG.
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Participation in the International Joint Graduate Program in Materials Science (GP-MS) at Tohoku University, Japan
Duration: 01.10.2019 bis 31.12.2024
The International Graduate Program at Tohoku University in Sendai, Japan, was opened in 2018 with the participation of numerous colleagues from Asia, Europe and the USA. Prof. Manja Krüger and Dr. Georg Hasemann from Otto von Guericke University Magdeburg are involved in the program (see photo). Together with our Japanese colleagues Prof. Kyosuke Yoshimi and Ass. Prof. Shuntaro Ida and use the unique equipment in the laboratories of Tohoku University in Sendai and Otto von Guericke University Magdeburg.
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Determining the comminution behavior of plastic particles in milling processes
Duration: 01.09.2022 bis 30.06.2024
The recycling of plastics is an important issue in terms of environmental sustainability, recyclability and of waste management. The development of proper technologies for plastic recycling is generally recognized as a priority. To achieve this aim, the technologies that have been developed and applied in mineral processing can be adapted to recycling systems. In particular, the improvement of comminution technologies is one of the main actions to improve the quality of recycled plastics. The aim of this work is to study the comminution processes in milling for different types of plastic materials.
Metallic high temperature materials with core-shell structures
Duration: 01.09.2022 bis 29.02.2024
This project is sponsored as part of the Philipp Schwartz Initiative of the Alexander von Humboldt Foundation.
The optimization of the microstructure is essential for a balanced property profile of metallic materials in the low and high temperature range. The generation of a matrix-reinforcement phase structure is the focus of this project. To achieve this goal, the method of mechanical high-energy grinding or mechanical alloying is to be used. This method is used, for example, for oxide-dispersion strengthened alloys. For the synthesis of high-performance high-temperature materials, a particulate hard phase (boride, silicide or oxide) is first to be enclosed with a ductile metallic phase in order to produce core-shell particles that are compacted in a subsequent sintering process.
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Creep behavior of advanced directionally solidified multi-phase Mo-alloys with and without coating (HTMA-DS Mo)
Duration: 01.03.2020 bis 31.01.2024
Mo-Hf-B and Mo-Zr-B alloys as a new class of refractory alloys are potential candidates in stationary and mobile turbine applications. Due to the high melting points of the constituents high-temperature strength and creep strength are expected up to 1,400 °C. Those high service temperatures, in turn, may result in higher turbine efficiencies and may reduce primary energy consumption.
As a manufacturing route, directional solidification via zone melting as a new processing approach for Mo-Hf-B and Mo-Zr-B results in low oxygen (< 50 ppm) impurities, which is essential to avoid embrittlement of these alloys; moreover the materials possess an anisotropic lamellae-reinforced microstructure.
New alloying strategies for Mo-based high temperature materials
Duration: 01.10.2019 bis 30.06.2023
The demand for new high temperature alloys increases due to economic reasons and stricter climate protection and resource conservation requirements. For applications in the field of energy conversion, new Mo-Si-B materials are in the focus of current research. There is a specific interest in alloys with a continuous Mo matrix phase and silicide particles, which provide an acceptable fracture toughness and high creep resistance at the same time.
A drawback of potential applications of Mo-Si-B alloys, e.g. as rotating turbine blades, is the density of > 9 g/cm³. Therefore, this project aims into a density reduction of this alloy type, meeting values of < 8 g/cm³. This is challenging because significant losses in the fracture toughness and the creep resistance should be avoided.
Creep behavior of directionally solidified Mo materials with and without coating
Duration: 01.04.2020 bis 31.03.2023
The work focuses on the development and characterization of novel multiphase high-temperature materials based on a Mo solid solution phase (Moss) reinforced with intermetallic Mo2ZrB2 and Mo2HfB2 phases with high melting points. Mo-Hf-B and Mo-Zr-B are a class of high-temperature materials that can find various applications, e.g. in the aircraft industry due to their high creep resistance at the targeted application temperatures, which is superior to modern nickel-based superalloys. However, the material behaviour in the medium temperature range is critical; here the molybdenum oxidizes, which makes material protection necessary.
As part of a sub-project, self-healing coating systems are being developed, characterized and tested in an application-oriented manner. These coating systems consist of an oxygen-free preceramic polymer and oxygen-binding filler particles such as Si and B. The conversion into a closed ceramic protective layer takes place in an inert atmosphere in the temperature range between 800 °C and 1200 °C.
Cyclic oxidation tests prove a protective effect (still to be improved) of the coating in the temperature range between 800 °C and 1000 °C; the effect at higher temperatures is currently being investigated.
Initial results of radiographic investigations show that a zirconium molybdate phase is formed by adding ZrO2 as an additional filler, i.e. the alloy components Mo react to form stable phases and remain in the sample; the evaporation of Mo oxides is largely prevented. The role of the protective layer in this process has not yet been fully clarified and is the subject of further investigations.
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OPOS: Optimized powder metallurgy solutions for metallic high temperature materials
Duration: 01.10.2020 bis 31.03.2023
The overall objective of the present project is to expand the existing collaboration between the research groups of Prof. Krüger at Otto-von-Guericke-University Magdeburg and Priv.-Doz. Bogomol from the National Technical University of Ukraine "Igor Sikorsky KPI” (Ukraine). Additionally, a new cooperation with the research group of Prof. Smyrnov from the same Ukrainian University will be established. The planned activities should enable a multilateral consortium on the basis of joint research on innovative materials.
The aim of the scientific and technical cooperation is to produce a novel Mo-based alloy for structural applications in a high-temperature gas turbine using an optimized powder metallurgical manufacturing process. The optimum combination of properties of Mo-based alloys can be achieved when the alloy has a fine-grained microstructure with a ductile Mo solid solution matrix and high temperature resistant intermetallic inclusions.
Refractory metal-based high-entropy alloys with remarkable mechanical properties
Duration: 01.01.2020 bis 31.12.2022
The so-called High Entropy Alloys (HEAs) or Compositionally Complex Alloys (CCAs) represent a new and attractive class of materials with promising mechanical, physical and chemical properties. In contrast to conventional alloys based on a specific metal, they consist of at least 5 different elements in approximately equal atomic proportions. Such alloys have remarkable property profiles that differ significantly from those of the respective base components. Refractory metal-based HEAs appear to be particularly interesting; they typically consist of components with melting temperatures above 2000°C. These refractory metal-based HEAs are promising new material candidates for high-temperature structural materials in various areas of energy technology, e.g. as gas turbine blades or solar receivers. In addition, potential applications in medical technology are also conceivable due to their good biocompatibility.
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Density functional theory calculations on metals and intermetallics
Duration: 01.10.2019 bis 30.09.2022
With the aid of density functional theory it is possible to adress many questions regarding metals and intermetallics likewise. Not only it is possible to predict the crystal structure of a solid, but also the ability to investigate and explain site preferences within intermetallics like borides and silicides comes in handy. It is also very important to determine the stability of metals and intermetallics and, in doing so, the electronic and phononic properties is investigated. The phase stability of matrix, side phases and precipitations depends on the temperature and the pressure and therefore one uses first principles calculations to investigate the thermodynamic properties of these metals and intermetallic phases at least qualitatively. The elastic properties of the metals and intermetallics can also be predicted to a very good precision.
Density functional theory is therefore the ideal ansatz to investigate metals and intermetallics as it is accurate and fast.
Determination of phase equilibria of V-Si-B-Cr alloys at high temperatures
Duration: 01.10.2019 bis 30.09.2022
In cooperation with Prof. K. Yoshimi from Tohoku University in Sendai, Japan, vanadium-based high-temperature materials are being produced and investigated. The materials are selected on the basis of thermodynamic phase equilibria. They are produced using a melting metallurgical process with subsequent heat treatment. Results are discussed and alloy development is further optimized during reciprocal visits.
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Innovative production of novel multi-component bio-materials
Duration: 08.03.2022 bis 07.08.2022
Artificial prostheses can be successfully implanted in the human body for many years and improve the mobility, vitality and quality of life of patients. A variety of different ceramic and metallic implant materials, such as alumina-hardened zirconia and the alloys Ti-Al-V and Co-Cr-Mo, are already in clinical use. However, there is a constant need and scientific interest in improving the properties and longevity of implants in terms of wear resistance, corrosion and, in particular, biocompatibility and tissue compatibility, e.g. to prevent inflammatory reactions. The innovative material class of bio-refractory metal materials(bio-MEAs) and bio-high entropy alloys (bio-HEAs) represent a unique design approach for the development of new biomedical materials. In addition to attractive mechanical properties and excellent wear and corrosion resistance, this class of materials offers potential for improved biocompatibility compared to previously used materials.
In addition to the development of new alloy concepts, the focus is also on the production of biocompatible materials. In recent years, demand for additive manufacturing - known as 3D printing - has risen sharply in the industrial sector, but especially in the field of medical implants. Due to the layered structure, highly complex geometries in anatomical shapes and delicate lightweight structures can be realized, which can hardly be produced using conventional methods. Another advantage of additive manufacturing is that the required patient-specific implants can be made available in a very short time. This results in very specific advantages for the additive manufacturing of implants that bring both economic and patient welfare benefits, as waiting times and therefore inpatient stays and the resulting complications can be massively reduced. The project, which is funded by the Innovation Fund of Otto von Guericke University (OVGU) Magdeburg, aims to intensify the interdisciplinary collaboration between the Chair of High Temperature Materials at the OVGU's Faculty of Mechanical Engineering and the Experimental Orthopaedics research department at the Orthopaedic University Hospital Magdeburg. New findings on the development of biocompatible HEAs/MEAs, innovative manufacturing strategies and important mechanical properties of the new materials are to be investigated.
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MEMoRIAL-M2.2 | Characterisation and simulation-based development of Engineering Materials
Duration: 01.08.2018 bis 30.06.2022
The sub-project is related to Engineering Materials to be used in a wide temperature range and under complex mechanical loading. The project will focus on the microstructure/properties relationship of single and multi-phase metallic materials. Theoretical considerations of microstructure evolution or phase stability/transition will be done by Phase-Field Simulation and/or DFT, MD, or other nanoscale-related numerical methods. Mechanical properties will be determined from (micro and nano) indentation, bending, compression as well as creep tests.
A simulation-supported approach shall be used to develop further these materials.
Active oxidation protection coatings for Mo-Si-B high-temperature materials
Duration: 01.07.2016 bis 30.04.2022
High-temperature resistant Mo-Si-B materials are being intensively investigated as suitable substitutes for nickel-based materials. One problem with these materials that has not yet been solved is their oxidation behavior. The Mo solid solution phase in particular oxidizes catastrophically depending on the temperature, forming a volatile Mo oxide. Previously known protective coating systems have not been able to solve this problem satisfactorily. The aim of the project is therefore to develop a novel, active protective system based on preceramic polymers containing fillers with a high oxygen absorption capacity in combination with the inhibition of oxygen diffusion in cooperation with Prof. M. Scheffler (Chair of Non-Metallic Materials).
Prof. Krüger's department is producing suitable active filler particles for this purpose, which are then applied to the substrate materials via a slurry using a dip coating process. Oxidation tests at different temperatures with subsequent analysis of the coating and the coating-substrate interface are intended to show the extent to which the oxidation behavior of the substrate is influenced by the new coating systems.
Active oxidation protection coatings for Mo-Si-B high-temperature materials
Duration: 01.04.2020 bis 30.04.2022
High-temperature resistant Mo-Si-B materials are being intensively investigated as suitable substitutes for nickel-based materials. A known problem with these materials is their oxidation behavior. The Mo solid solution phase in particular oxidizes catastrophically depending on the temperature, forming a volatile Mo oxide. Previously known protective coating systems have not been able to solve this problem satisfactorily. The aim of the project is to develop a new protective system based on preceramic polymers containing fillers with high oxidation resistance.
As part of the sub-project, oxidation protection coating systems based on preceramic polymers of the polysilazane type with oxygen-absorbing filler particles (Si, B, silicides) are being developed and tested in application-oriented oxidation tests with regard to their protective effect. In addition to a perhydropolysilazane, promising compositions contain 25 % silicon and 15 % boron by volume; both fillers form a low-viscosity glass under oxygen absorption, which is able to close microcracks in the coating system and on the material surface to be protected. Modifications of the protective coatings are currently being carried out with the filler boron nitride. Oxidation tests of the coated refractory metal alloys pyrolyzed at 1000 °C in nitrogen show very good oxidation protection at 800 °C, which showed no further changes in mass over the test period of 100 hours after an initial increase in mass, thus indicating a high protective effect.
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Innovative biocompatible alloys
Duration: 01.05.2021 bis 30.04.2022
The requirements placed on medical devices and medical technology components are heavily dependent on their use. For a long time, biocompatible materials were regarded as chemically and biologically inert within the human body, but this has since been revised, as there is always a response from the body.
Nanostructured biomaterials, including those based on refractory metals, may be of great interest for the future of the biomedical industry and are therefore increasingly the focus of current research. Their fundamentally good compatibility in the human body together with excellent mechanical properties are decisive factors here. The use of titanium and titanium alloys in surgery has steadily increased due to their good combination of properties compared to other metallic implant materials such as stainless steel and cobalt-chromium alloys. Biocompatible titanium and titanium-based alloys are characterized by good fatigue strength, corrosion resistance and low density, resulting in a high specific strength-to-weight ratio that allows for lighter and stronger structures. One of the most popular titanium alloys used in medicine today is Ti-6Al-4V. However, even approved medical materials can still be optimized for acceptance in the human body.
In this project, the first cell population experiments are being carried out on new, innovative materials with mesenchymal stem cells and osteoblasts. They are a perfect indicator of biocompatibility and cell ingrowth behavior for potential implant materials or other medical materials.
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Development and characterization of eutectic V-Si-B alloys with improved specific mechanical properties for high temperature applications
Duration: 01.04.2019 bis 31.03.2022
Nickel-based superalloys are currently the material class of choice for high-temperature applications in turbine construction. Vanadium silicide materials represent a potential alternative, particularly due to their excellent specific mechanical properties. For example, V-Si-B alloys from the vanadium-rich region of the three-material system consist of a ductile vanadium solid solution (V-Mk) and the two intermetallic phases V3Si and V5SiB2. However, this alloy system, which has been little researched to date, has some surprising similarities to its well-studied neighboring system Mo-Si-B in terms of microstructure. In initial preliminary tests on V-Si-B alloys, significantly better specific compressive strengths were achieved in the temperature range from 600 °C to 900 °C compared to Ni-based alloys. However, the mechanism of phase formation and the correlation of the microstructure-property relationships are still completely unexplored. The primary objective of this project is the development of novel V-Si-B alloys for high temperature applications. The aim is to develop ternary-eutectic alloys. In a series of V-rich binary and ternary test alloys, the phase formation and stability from the melt to the homogenized microstructure will be investigated.
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MEMoRIAL-M2.1 | Optimisation of novel vanadium based high temperature materials
Duration: 01.08.2017 bis 31.07.2021
Background
Due to the low density in combination with a high melting point, vanadium demonstrates a great lightweight potential for turbines in aircrafts or energy industry. Since vanadium as a structural material is in focus of research only recently, the effects of several alloying elements on the materials properties are not or insufficiently examined yet.
Objective
The investigation of the microstructure-property relationship in binary, ternary and quaternary V-based alloys in order to use the findings to improve high-temperature alloys based on V-Si-B.
Methods
By means of ingot metallurgy (arc-melting process), vanadium samples with different concentrations of alloying elements were manufactured. Resulting from this, single phase vanadium solid solutions (Vss), two-phase and three-phase alloys were produced. Microhardness measurements and compression tests were carried out to determine the mechanical properties in dependence on the alloying components. SEM (Scanning Electron Microscopy) and XRD (X-ray Diffraction) methods were used to examine the microstructure, to identify phases and to measure elements concentration in the respective phases.
Results
The combination between mechanical characteristics and microstructural investigations enables conclusions concerning the materials behavior and the efficiency of solid solution strengthening and second phase strengthening.
Conclusions
The elements Cr, Mo and Nb have a high potential for improving the microstructure property relationship in modern V-Si-B alloys.
Orignality
Basic research on the effects of various alloying elements in vanadium solid solution, as well as in promising ternary V-Si-B high temperature alloys.
Keywords
Vanadium-based alloys, microstructure-property-relationship, intermetallics, V-Si-B-X, vanadium solid solution phase
Additive manufactured particle-reinforced vanadium alloys
Duration: 01.07.2020 bis 30.06.2021
Multiphase vanadium alloys are the focus of current research into new high-temperature materials due to their outstanding mechanical properties. By combining the ductile vanadium solid solution phase with high-strength intermetallic or intermediate phases, a material with optimized properties is being developed.
In the LextrA (https://forschung-sachsen-anhalt.de/project/lextra-laserbasierte-additive-fertigung-20506) project, various vanadium materials were processed into compact test specimens for the first time using the additive manufacturing process DED (Direct Energy Deposition).
Using DED, oxide particles were introduced into multiphase vanadium materials at the ILT Aachen in order to optimize the mechanical properties. The research task at OVGU is to investigate the new materials with regard to the homogeneous distribution of the particles in the microstructure and to describe their mode of action. The strength-enhancing effect of the introduced particles will be quantitatively evaluated in comparison to a particle-free reference material.
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Oxidation protection of vanadium alloys by pack cementation
Duration: 01.01.2020 bis 30.06.2021
Due to their excellent mechanical properties, vanadium alloys have the potential to be used as future structural materials. However, vanadium materials oxidize strongly at elevated temperatures, which means that their range of application is currently limited to typical ambient temperatures.
In the DFG-funded cooperation project "Oxidation protection coatings for vanadium materials" (project number 39807701, duration until 02/2019), suitable oxidation protection coatings were developed. These were applied in the laboratory of Prof. J. Perepezko (University of Wisconsin-Madison, USA) using the special powder packaging process. At the IWF, these layer-substrate composites are examined in detail using various microscopic methods and their protective effect is tested.
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New high-temperature materials and their properties - a cooperation with the National Technical University of Ukraine in Kiev
Duration: 01.01.2017 bis 31.12.2020
As part of the cooperation with the "High Temperature Materials and Powder Metallurgy" working group at the National Technical University of Ukraine "KPI" in Kiev, complex, refractory materials are being developed. These are produced using either powder metallurgical processes or a crucible-free zone melting process. The new materials are examined at OVGU with regard to their microstructural characteristics and tested at high temperatures.
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Active oxidation protection coatings for Mo-Si-B high-temperature materials
Duration: 01.12.2018 bis 01.12.2020
The aim of this project is to develop a coating system to build up complex functions for the effective component protection of Mo-Si-B alloys; this system consists of an oxygen-free preceramic polymer of the polysilazane type that can be processed in air and filled with ceramic and/or metallic particles. The fillers have three functions: to increase the coating thickness compared to the unfilled coating system; to reduce the shrinkage of the coating material caused by the transition from polymer to ceramic; and to form new phases by reaction between the preceramic polymer, filler and component(s) and the service atmosphere, which should compensate for a possible volume change due to abrasive/oxidative processes on the (coated) component surface (volume expansion of the fillers when oxygen is absorbed). Phase analysis, composition and state are determined using X-ray diffraction (XRD; Rietveld analyses are carried out if there are significant proportions of crystalline phases).
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Polymerabgeleitete keramische Schutzschichten
Duration: 01.07.2016 bis 30.11.2020
Ziel dieses Projektes ist die Entwicklung eines Beschichtungssystems zum Aufbau komplexer Funktionen für den effektiven Bauteilschutz von Mo-Si-B-Legierungen; dieses System besteht aus einem sauerstofffreien präkeramischen Polymer vom Polysilazantyp, das sich an Luft verarbeiten und mit keramischen und/oder metallischen Partikeln füllen lässt. Die Füllstoffe haben drei Funktionen: die Erhöhung der Schichtdicke im Vergleich zum ungefüllten Beschichtungssystem; die Reduzierung der durch den Übergang vom Polymer zur Keramik bedingten Schwindung des Schichtwerkstoffs und die Bildung neuer Phasen durch Reaktion zwischen präkeramischem Polymer, Füllstoff und Komponente(n) und der Serviceatmosphäre, die eine mögliche Volumenänderung durch abrassive/oxidative Prozesse an der (beschichteten) Bauteiloberfläche kompensieren sollen (Volumenausdehnung der Füllstoffe bei Aufnahme von Sauerstoff). Phasenanalyse, -zusammensetzung und -zustand werden mittels Röntgendiffraktometrie erfasst (XRD; bei Vorliegen nennenswerter Anteile kristalliner Phasen werden Rietveld-Analysen durchgeführt).
LextrA: Laser-based additive manufacturing of innovative intermetallic materials
Duration: 01.02.2017 bis 30.06.2020
The use of innovative materials contributes to the energy and resource efficiency of technical processes. Ultra-high temperature materials based on intermetallic phases and refractory metals have the potential to substantially increase the efficiency of gas turbines. This requires fundamental scientific research on microstructure-properties relationships of potential multi-phase alloys.
For the project LextrA we selected different intermetallic materials based on iron aluminides, vanadium silicides and molybdenum silicides. Conventional ingot metallurgical processes are limited in their applicability due to the high melting point of the intermetallic and refractory materials. Additive manufacturing techniques provide new options to allow the integration of complex cooling structures in turbine blades and are resource efficient alternatives of conventional processes. This combination of optimized material and improved cooling system will result in a significant increase in the operation temperature of modern gas turbines, which leads to higher process efficiency. The project consortium evaluates the applicability of two additive manufacturing processes, namely directed energy deposition (DED) and laser powder bed fusion (LPBF).
Deformation behavior and service life calculations of turbine blades made of nickel and molybdenum alloys
Duration: 01.07.2016 bis 30.06.2020
As part of the doctoral project, a material fatigue model for lifetime prediction is to be derived in cooperation with the Institute of Mechanics (apl. Prof. Naumenko). The basic aim is to determine the mechanical properties of current nickel-based materials and new molybdenum-based materials in the potential application temperature range of the turbine. The model is to be applied to selected blade geometries.
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FlexiDS: Elucidation of phase and microstructure formation during directional solidification of new metallic and intermetallic materials by in-situ observation of the solidification process with photon diffraction
Duration: 01.08.2016 bis 31.07.2019
In cooperation with the Karlsruhe Institute of Technology (KIT), the FlexiDS project aims to investigate the process of directional solidification in various high-temperature materials using in-situ X-ray diffraction. Within this framework, an innovative in-situ sample environment for directional solidification is to be developed and set up at the HEMS (High Energy Material Science) beamline at DESY (Deutsches Elektronen Synchrotron, Hamburg) . This will offer the partners involved completely new research and characterization possibilities through direct observation of the directional solidification process. The Helmholtz-Zentrum-Geesthacht (HZG), which is in charge of this beamline, will support the design, construction and operation of the sample environment.
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Micro-macro interactions in structured media and particle systems GRK 1554
Duration: 01.10.2014 bis 31.03.2019
Subproject: Microstructural damage of coated AlSi materials under mechanical and thermal stress
Editing: Dipl.-Ing. Philipp G. Thiem
New intermetallic coating systems on AlSi substrates are being investigated. The coated materials are subjected to both static and cyclic loads in order to investigate the effects of the alloy composition, the microstructure and the coating thickness on crack formation and crack propagation in the application-relevant temperature range. Material parameters, e.g. the modulus of elasticity, and other parameters such as the adhesive strength of the coating are to be included in the modeling of the damage mechanisms in this material composite.
Subproject: Crack initiation and crack propagation in multiphase high-temperature materials
Editing: M.Sc. Julia Becker
Multiphase high-temperature materials are investigated with regard to crack initiation in the individual phases, crack propagation and their fracture toughness. Initial experiments on crack initiation and crack propagation were carried out on Mo-Si-B alloys produced by powder metallurgy using the indentation fracture mechanics method. The findings are to be transferred to directionally solidified multiphase molybdenum materials.
Collaboration in other sub-projects:
* Experimental Investigations and Numerical Simulations of Lamellar Cu-Ag Composites
Editing: M. Sc. Srihari Dodla
Supervision: Prof. A. Bertram, Prof. M. Krüger
* Crystal Viscoplasticity Based Simulation of Ti-Al Alloy under High-Temperature Conditions
Editing: M. Sc. Helal Chowdhury
Supervision: Prof. K. Naumenko, Prof. H. Altenbach, Prof. M. Krüger
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Metal cast component and method for producing a metal cast component
Duration: 19.12.2013 bis 30.06.2017
The invention relates to a metal cast component, which is intended in particular for parts of internal combustion engines or piston compressors, such as pistons, gearboxes, crankcases and other housings and/or cylinder heads, wherein the cast component consists at least in certain portions of an iron aluminide and/or is a composite cast component comprising at least two portions, which consist of a cast iron and/or an iron aluminide and/or a light metal. The invention also relates to a method for producing a metal cast component, in particular for parts of internal combustion engines or piston compressors, such as pistons, gearboxes, crankcases and other housings and/or cylinder heads, which consists of one or more cast materials such as cast iron and/or iron aluminide and/or light metal, in which method a first portion of the cast component is produced in a first casting operation and a further portion of the cast component is produced in a further casting operation and a coating, in particular of iron aluminide and/or a nickel alloy, is applied as a coupling agent layer to the first portion before the further casting operation.
Physical and mechanical properties of directionally solidified eutectic alloys
Duration: 01.07.2014 bis 30.06.2017
Intermetallic phases, carbides and oxides are ideally suited as reinforcing phases for high-melting composite systems. In this project, in-situ composites are to be produced using a special crucible-free zone melting process. With the aim of achieving a fiber-like or lamellar morphology of the reinforcing phases, suitable alloy systems are identified in the first step. The starting materials in powder form are then mixed according to the nominal composition and cold pressed before being locally melted and directionally cooled. The physical and mechanical properties are then determined in the next step using suitable measurement and analysis methods. A comparison is made with known high-temperature materials.
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Vanadium-based high-temperature materials
Duration: 01.10.2014 bis 31.03.2017
The requirement profile for high-temperature materials for complex technical applications consists of good mechanical properties across the entire application range and sufficient oxidation resistance. In the case of dynamically moving components, density is also an important criterion for material selection. High-melting-point materials based on vanadium (Ts = 1910°C) have the advantage that the density can be reduced by around 30% compared to reference materials such as nickel alloys and by around 20% compared to steels. This project aims to lay the foundation for the development of high-strength vanadium materials. In the first approach, vanadium-silicon solid solution materials are produced via the process of mechanical alloying and their properties are determined. The application of kinetic models, taking into account the real process variables, serves to understand and optimize the process of mechanical alloying for this material system. In the next step, silicide phases (e.g. V3Si and V5SiB2) are integrated into the solid solution materials in order to optimize the high-temperature strength.
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Solidification behavior of near-eutectic and eutectic Mo-Si-B alloys
Duration: 01.06.2015 bis 31.12.2016
Molybdenum-silicon-boron alloys are regarded as attractive high-temperature materials with properties that go beyond those of conventional nickel-based superalloys. Eutectic Mo-Si-B alloys are particularly interesting for processes such as directional solidification by zone melting or selective laser melting because they are suitable for producing fiber-matrix structures.
To determine the eutectic point in the three-phase region Mo-Mo3Si-Mo5SiB2, the cooling paths of different alloys are investigated and compared with thermodynamic simulations. The microstructural characteristics of these materials are correlated with the mechanical properties up to 1400°C.
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High Temperature Materials with Intermetallic Structures
Duration: 01.12.2013 bis 30.11.2015
The project relates to the application of an energy-efficient method for the production of novel refractory metal alloys with melting temperatures above 2000°C. These materials have the potential to substitute the currently used nickel-based superalloys with maximum application temperatures of around 1100°C. With the help of such a material substitution, a contribution can be made to increasing thermodynamic efficiency, for example in power generation units.
In our approach, alloys with intermetallic structures are produced directly from a mixture of elemental powders in just one process step, whereby the size and distribution of the microstructure components are specifically influenced by the production parameters. The Ukrainian partner is providing a zone melting furnace specially designed for such high-melting-point materials. The expertise of the German partner will be used to characterize the relationships between the microstructure and the properties of the new materials. The new materials and the unique production technology can be used in the energy supply sector, the aircraft industry and other areas where extreme conditions are required in terms of thermal and mechanical stress.
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Energy absorption behavior in body-centered cubic steels for crash-relevant components
Duration: 01.01.2013 bis 30.06.2015
In the context of increasing safety requirements in automotive engineering, materials that can absorb energy during a collision and distribute it optimally across the entire component should be used for crash-relevant components. The high degree of energy absorption of currently used TWIP steels is based on the formation of deformation twins in the crystal lattice. This deformation mechanism enables high energy absorption with low deformation. However, the production of TWIP steels is cost-intensive, primarily due to the use of expensive alloying elements. TWIP steels also have limited weldability and are difficult to form.
As part of the planned project, a deeper understanding of the mechanisms of impact deformation of steels with different alloying elements is to be developed in order to obtain a statement on their suitability as materials for crash-relevant components.
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Alloy having a content of cobalt that is greater than the content of a further any desired alloy element, useful for thermally and mechanically highly stressed components e.g. in gas turbines, preferably for the turbine blades
Duration: 24.02.2011 bis 31.08.2014
Alloy having a content of cobalt C(Co) that is greater than the content C(i) of a further any desired alloy element (i), a content of rhenium C(Re) and a content of boron C(B), is claimed, where the content of rhenium C(Re) in atom% compensates 5= C(Re) less than C(Co) and the content of boron C(B) in atom% compensates 0.007= C(B) less than MIN (7; C(Co)), where MIN (7; C(Co)) defines the smaller of the two values.
COMO II - Joint project in the automotive research focus area - Friction reduction - Materials sub-project
Duration: 01.01.2012 bis 31.12.2013
The materials sub-project will contribute to the characterization of the microstructure and properties of structured and coated cylinder running surfaces with regard to the reduction of friction losses.
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Innovative hybrid materials for automotive applications
Duration: 01.07.2012 bis 31.07.2013
With a view to increasing the efficiency of combustion engines, e.g. by reducing the overall friction of the system by reducing the dynamically moving masses, materials with a high specific strength and rigidity should be used. Compared to other light metal alloys such as Al-Si or Ti-Al materials, iron aluminides are characterized by their increased high-temperature strength, creep resistance and fatigue strength. Fe3Al materials are predestined for use in combustion engines due to their excellent corrosion and wear properties. With this outstanding property profile, Fe3Al alloys can be used, for example, to reinforce light metal castings made of aluminum or to coat aluminum components with the aim of increasing their high-temperature and wear resistance.This text was translated with DeepL
Property characterization of welded steels
Duration: 01.12.2011 bis 31.10.2012
Comparative studies on the strength and deformation properties are carried out on welded steels. The microstructures and fracture surfaces are also characterized.
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Reibungsreduktion an Tribosystemen von Dieselmotoren COMO A2 - Werkstoffe
Duration: 01.09.2007 bis 31.12.2011
Das Hauptaugenmerk der Werkstoffentwicklung im Bereich des Kurbeltriebs (einschließlich des Kolbens) im Hinblick auf eine Erhöhung des Wirkungsgrades durch z.B. Verringerung der Gesamtreibung des Systems ist darauf gerichtet, Materialien mit einer möglichst hohen spezifischen Festigkeit und Steifigkeit einzusetzen, da damit die dynamischen Massen im System reduziert werden können und konstruktiver Leichtbau optimal unterstützt wird. Neben den genannten Eigenschaften sind eine hinreichend gute Duktilität sowie Zähigkeit für den Widerstand gegen Rissfortschritt und eine hohe Dauerschwingfestigkeit entscheidende Kriterien für die Werkstoffauswahl.
Mikrostrukturelle und mechanische Untersuchungen an FeAl-X-Legierungen
Duration: 01.07.2009 bis 30.06.2011
Das Verhalten verschiedener FeAl(-X)-Legierungen wurde mittels mechanischer Versuche unter statischer und zyklischer Beanspruchung bei Raumtemperatur sowie bei höheren Temperaturen charakterisiert. Es erfolgte eine Analyse der Gefüge-Eigenschafts-Beziehungen.
Beyond Nickelbase Superalloys
Duration: 01.04.2007 bis 30.11.2009
Metallische Werkstoffe, die Oberflächentemperaturen größer 1200°C bei gleichzeitiger hoher mechanischer Belastung in Luftatmosphäre dauerhaft widerstehen können, sind nicht nur aus volkswirtschaftlichen und Umwelt-Gesichtpunkten (Schonung fossiler Ressourcen, Verringerung der Schadstoffbelastung) von großem Interesse. Für die Werkstoffwissenschaft und angrenzende Disziplinen ergibt sich daraus einerseits die reizvolle Aufgabe, mit metallurgischen bzw. metallphysikalischen Prinzipien nach Legierungen zu suchen, die das oben angesprochene Anforderungsprofil erfüllen können. Andererseits müssen diese neu zu entwickelnden Legierungssysteme eingehend charakterisiert werden, um ihre Eignung hinsichtlich der gestellten Aufgabe unter Beweis zu stellen und im Rückschluss mit den Legierungsentwicklern optimierte Lösungen zu finden. Hier setzt die Forschergruppe an, mit dem Fokus auf die nachfolgenden zwei Legierungssysteme: Mo-Si-B, das bereits seit mehreren Jahren international beforscht wird und wofür die gebildete Forschergruppe bereits sehr gute Vorkenntnisse besitzt, Co-Re, für das in der Literatur bislang nur geringe Kenntnisse vorhanden sind, das jedoch von der Forschergruppe als sehr Erfolg versprechend eingestuft wird. Beide Systeme besitzen Schmelzpunkte, die mindestens 250°C über denen der heute eingesetzten Ni-Basis-Superlegierungen liegen. Die zentrale Aufgabe der Legierungsentwicklung und das Ziel dieser Forschergruppe bestehen nun einerseits darin, weitere Legierungselemente zu finden, die eine Verbesserung der für einen (Last tragenden) Hochtemperatureinsatz essentiellen, nachfolgend aufgelisteten Eigenschaften erlauben: Oxidationsbeständigkeit, Kriechwiderstand, Zähigkeit und Duktilität bei tiefen Temperaturen (Raumtemperatur), Ermüdungswiderstand. Die drei erstgenannten Eigenschaften wurden im ersten Förderzeitraum intensiv untersucht. Als ein „Highlight“ ist in der zweiten Projektphase die Duktilisierung der Mo‑Si-Mischkristallphase, welche die Matrix im System Mo-Si-B bildet, durch (Mikro-) Legieren gelungen. Eine Zugabe von Zr bewirkt durch die Stärkung der Korngrenzen sowohl eine Festigkeitssteigerung als auch eine Erhöhung der Duktilität, wie es in der unten stehenden Abbildung anhand einer Beispiellegierung gezeigt wird. Außerdem soll das (komplexere) Ermüdungsverhalten nach Identifikation von viel versprechenden Legierungszusammensetzungen untersucht werden.
2025
Peer-reviewed journal article
Phase equilibria in the V-rich region of the V-Si-B system at 1400 °C
Yang, Weiguang; Hasemann, Georg; Saldaña, Mustafa Carrion; Gorr, Bronislava; Schwaiger, Ruth; Krüger, Manja
In: Journal of phase equilibria and diffusion - Boston, Mass. : Springer . - 2025, insges. 19 S. [Online first]
A comparative analysis of in vivo-generated and artificial CoCrMo wear particles created by high-energy ball milling and the Buchhorn method
Buchholz, Adrian; Höpfer, Rebecca; Becker, Julia; Voropai, Vadym; Schmelzer, Janett; Krüger, Manja; Bertrand, Jessica
In: Materials - Basel : MDPI, Bd. 18 (2025), Heft 3, Artikel 643, insges. 14 S.
Effects of Cr addition on Ti implant alloys (Ti-Cr/Ti-Al-V-Cr) to enhance corrosion and wear resistance
Herbster, Maria; Garke, Bernd; Harnisch, Karsten; Michael, Oliver; Lieb, Alexandra; Betke, Ulf; Könnecke, Mandy; Heyn, Andreas; Kriegel, Paulina; Thärichen, Henrike; Bertrand, Jessica; Krüger, Manja; Halle, Thorsten
In: Journal of the mechanical behavior of biomedical materials - Amsterdam [u.a.] : Elsevier, Bd. 164 (2025), Artikel 106899, insges. 23 S.
Synthesis and spark plasma sintering of Ti5Si3-Mo powders with core-shell structure
Solodkyi, Ievgen; Mosiichuk, Vadim; Kucher, Oleksandr; Krüger, Manja
In: Vacuum - Amsterdam [u.a.] : Elsevier Science, Bd. 232 (2025), Artikel 113843, insges. 9 S.
2024
Peer-reviewed journal article
Effect of oxygen in Mo-TM (TM = Ti, Zr, Hf) solid solutions as studied with density functional theory calculations
Touzani, Rachid; Nizinkovskyi, Rostyslav; Krüger, Manja
In: Crystals - Basel : MDPI, Bd. 14 (2024), Heft 3, Artikel 213, insges. 13 S.
Improved creep resistance of Mo-V-Si-B alloys with a density below 8 g/cm³
Becker, Julia; Krüger, Manja
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science, Bd. 169 (2024), Artikel 108277, insges. 7 S.
Thermodynamic properties of refractory Mo-Nb-V-Ti high entropy alloys (HEAs)
Bencze, László; Hasemann, Georg; Sergeev, Dmitry; Motalov, Vladimir; Müller, Michael; Krüger, Manja
In: Journal of alloys and compounds - Lausanne : Elsevier, Bd. 976 (2023), Artikel 173279, insges. 12 S.
Orientation-dependent hardness of Mo3Si studied by cube-corner nanoindentation
Yang, Weiguang; Hasemann, Georg; Schwaiger, Ruth; Krüger, Manja
In: Journal of materials science - Dordrecht [u.a.] : Springer Science + Business Media B.V, Bd. 59 (2024), S. 277-288
Improvement of the strength of ternary eutectic V-Si-B alloys at ambient and high temperatures due to Cr additions
Hasemann, Georg; Thielemann, Lars; Yang, W.; Ida, S.; Schwaiger, R.; Yoshimi, K.; Krüger, Manja
In: Journal of alloys and compounds - Lausanne : Elsevier, Bd. 1005 (2024), Artikel 176041, insges. 8 S.
Reducing the environmental embrittlement effect of TiAl alloys exposed to air at high temperatures by a fine-grained surface structure
Stangl, Christoph; Kollmannsberger, Eva; Krüger, Manja; Huber, Otto; Klaus, Hubert; Saage, Holger
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science, Bd. 175 (2024), Artikel 108479, insges. 10 S.
Monte-Carlo based algorithm for reconstruction of oriented microstructure
Nizinkovskyi, Rostyslav; Naumenko, Konstantin; Krüger, Manja
In: Proceedings in applied mathematics and mechanics - Weinheim : Wiley-VCH, Bd. 24 (2024), Heft 3, Artikel e202400110, insges. 10 S.
Additive manufacturing of a new non-equiatomic high-entropy alloy with exceptional strength-ductility synergy via in-situ alloying
Yan, Shaohua; He, Xipei; Krüger, Manja; Li, Yusen; Jia, Qiang
In: Materials and design - Amsterdam [u.a.] : Elsevier Science, Bd. 238 (2024), Artikel 112676, insges. 11 S.
Investigation of the equilibrium morphology of fcc [epsilon] − Cu in Fe-Cu alloys using a non-local Allen–Cahn model
Nizinkovskyi, Rostyslav; Halle, Thorsten; Krüger, Manja
In: Materials today. Communications - Amsterdam [u.a.] : Elsevier, Bd. 38 (2024), Artikel 107635, insges. 11 S.
Dissertation
Thermodynamische Untersuchung des Einflusses der Wassereinspritzung auf die Effizienz des ottomotorischen Arbeitsprozesses
Helmich, Matthias; Rottengruber, Hermann; Krüger, Manja
In: Düren: Shaker Verlag, 2024, Dissertation Otto-von-Guericke-Universität Magdeburg 2023, xx, 183 Seiten - (Berichte aus dem Maschinenbau), ISBN: 3-8440-9574-8 [Literaturverzeichnis: Seite 163-170][Literaturverzeichnis: Seite 163-170]
2023
Peer-reviewed journal article
Efficient sintering of Mo matrix composites - a study of temperature dependences and the use of the sinter additive Ni
Solodkyi, Ievgen; Petrusha, Vadym; Grigoroscuta, Mihai Alexandru; Schmelzer, Janett; Hasemann, Georg; Betke, Ulf; Badica, Petre; Krüger, Manja
In: Metals - Basel : MDPI, Bd. 13 (2023), Heft 10, Artikel 1715, insges. 15 S.
Dissertation
Failure analysis and modification of metallic alloys of contemporary arthroplasty components
Herbster, Maria; Halle, Thorsten; Bertrand, Jessica; Krüger, Manja
In: Magdeburg, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2023, XXV, 153, XXVII-CIII Seiten [Literaturverzeichnis: Seite LV-XCVII][Literaturverzeichnis: Seite LV-XCVII]
2022
Peer-reviewed journal article
High temperature oxidation performance of an additively manufactured Mo9Si8B alloy
Becker, Julia; Schmigalla, Sven; Schultze, Sabine; Rittinghaus, Silja-Katharina; Weisheit, Andreas; Schmelzer, Janett; Krüger, Manja
In: Oxidation of metals - Dordrecht [u.a.] : Springer Science + Business Media B.V, Bd. 97 (2022), S. 167-181
Influence of a fine-grained surface structure on the tensile behaviour of a beta stabilised intermetallic γ-TiAl-based alloy
Stangl, Christoph; Kollmannsberger, Eva; Zimogliadova, Tatiana A.; Krüger, Manja; Saage, Holger
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science, Bd. 146 (2022), Artikel 107566, insges. 11 S.
V 8SiB 4 - a new ternary phase in the V-Si-B system
Yang, W. G.; Touzani, Rachid Stefan; Hasemann, Georg; Yazlak, M.; Ziegner, M.; Gorr, B.; Schwaiger, R.; Krüger, Manja
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science, Bd. 151 (2022), Artikel 107691, insges. 12 S.
Ternary Vss-V3Si-V5SiB2 eutectic formation in the V-Si-B system
Yang, W. G.; Hasemann, Georg; Yazlak, M.; Gorr, B.; Schwaiger, Ruth; Krüger, Manja
In: Journal of alloys and compounds - Lausanne : Elsevier, Bd. 902 (2022), Artikel 163722 [Online first]
Influence of elasticity on the morphology of fcc-Cu precipitates in Fe-Cu alloys - a phase-field study
Nizinkovskyi, Rostyslav; Halle, Thorsten; Krüger, Manja
In: Journal of nuclear materials - Amsterdam [u.a.] : Elsevier Science, Bd. 566 (2022), Artikel 153764
Microstructural modification of TiAl6V4 alloy to avoid detrimental effects due to selective in vivo crevice corrosion
Herbster, Maria; Harnisch, Karsten; Kriegel, Paulina; Heyn, Andreas; Krüger, Manja; Lohmann, Christoph H.; Bertrand, Jessica; Halle, Thorsten
In: Materials - Basel : MDPI, Bd. 15 (2022), Heft 16, Artikel 5733, insges. 26 S.
Thermodynamic modelling of the V-Ti-B system
Yazlak, Mustafa; Christ, H.-J.; Yang, W.; Krüger, Manja; Hasemann, Georg; Gorr, B.
In: Calphad - Amsterdam [u.a.] : Elsevier Science, Bd. 79 (2022), Artikel 102477 [Online first]
Enhanced fracture toughness and high-temperature strength of directionally solidified Mo-XC alloys
Becker, Julia; Breuer, Danio; Bogomol, Jurii; Krüger, Manja
In: Crystals - Basel : MDPI, Bd. 12 (2022), Heft 11, Artikel 1534, insges. 8 S.
Microstructure formation of cast and directionally solidified Mo-Ti-B alloys
Petrusha, Vadym; Hasemann, Georg; Touzani, Rachid Stefan; Bolbut, Volodymyr; Bogomol, Iurii; Krüger, Manja
In: Metals - Basel : MDPI, Bd. 12 (2022), Heft 6, Artikel 916, insges. 13 S.
Refractory metal-based high entropy silicide-borides - the future of materials beyond MoSiB?
Galetz, M. C.; Ulrich, A. S.; Hasemann, Georg; Krüger, Manja
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science, Bd. 148 (2022), Artikel 107620, insges. 1 S.
Dissertation
Microstructure and properties of powder metallurgical manufactured V-rich V-Si-B alloys for high-temperature application
Schmelzer, Janett; Krüger, Manja
In: Magdeburg: Universitätsbibliothek, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2022, 1 Online-Ressource (XVII, 124 Blätter, 8,23 MB) [Literaturverzeichnis: Blatt 112-124][Literaturverzeichnis: Blatt 112-124]
2021
Abstract
A novel alloy development approach - biomedical high-entropy alloys
Regenberg, Maximilian; Schmelzer, Janett; Hasemann, Georg; Krüger, Manja
In: Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts , 2021 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Krüger, Manja, S. 109-110, Artikel O-HEA-04 [Intermetallics 2021, International Conference, 4th till 8th October 2021 : Educational Center Kloster Banz, Germany]
Particle strengthening of additively manufactured Me-SiB (Me = Mo, V) alloys
Schmelzer, Janett; Rittinghaus, Silja-Katharina; Wilms, Markus B.; Michael, Oliver; Krüger, Manja
In: Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts , 2021 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Krüger, Manja, S. 59-60, Artikel O-SI-04 [Intermetallics 2021, International Conference, 4th till 8th October 2021 : Educational Center Kloster Banz, Germany]
High-energy synchrotron X-ray in situ observation of ternary eutectic growth in a directionally solidified Mo-Si-B alloy
Hasemann, Georg; Zhu, Linye; Hauschildt, Katja; Blankenburg, Malte; Ida, Shuntaro; Pyczak, Florian; Yoshimi, Kyosuke; Krüger, Manja
In: Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts , 2021 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Krüger, Manja, S. 55-56, Artikel O-SI-02 [Konferenz: Intermetallics 2021, International Conference, 4th till 8th October 2021 : Educational Center Kloster Banz, Germany]
Ternary Vss-V3Si-V5SiB2 eutectic reaction in V-SiB system
Yang, Weiguang; Hasemann, Georg; Yazlak, Mustafa; Gorr, Bronislava; Schwaiger, Ruth; Krüger, Manja
In: Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts , 2021 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Krüger, Manja, S. 165-166, Artikel P-08 [Intermetallics 2021, International Conference, 4th till 8th October 2021 : Educational Center Kloster Banz, Germany]
Biocompatibility of pure refractory metals and their combination as high entropy alloys
Schmelzer, Janett; Hasemann, Georg; Regenberg, Maximilian; Betke, Ulf; Krüger, Manja; Walles, Heike; Scheffler, Michael
In: Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts , 2021 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Krüger, Manja, S. 172-173, Artikel P-13 [Intermetallics 2021, International Conference, 4th till 8th October 2021 : Educational Center Kloster Banz, Germany]
First principles density functional theory prediction of the crystal structure and the elastic properties of Mo2ZrB2 and Mo2HfB2
Touzani, Rachid Stefan; Krüger, Manja
In: Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts , 2021 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Krüger, Manja *1978-*, S. 94-95, Artikel O-MO-02 [Intermetallics 2021, International Conference, 4th till 8th October 2021 : Educational Center Kloster Banz, Germany]
Microstructure and mechanical properties of a γ-TiAl alloy with a nano-grained surface layer
Stangl, Christoph; Krüger, Manja; Saage, Holger
In: Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts , 2021 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Krüger, Manja, S. 90-91, Artikel O-TA-16 [Intermetallics 2021, International Conference, 4th till 8th October 2021 : Educational Center Kloster Banz, Germany]
Peer-reviewed journal article
Additive manufacturing of a near-eutectic MoSiB alloy - processing and resulting properties
Fichtner, D.; Schmelzer, Janett; Yang, W.; Heinze, C.; Krüger, Manja
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science - 128 (2021), Artikel 107025
Mo-silicide alloys for high-temperature structural applications
Perepezko, J. H.; Krüger, Manja; Heilmaier, M.
In: Materials Performance and Characterization - West Conshohocken, Pa. : ASTM International, Bd. 10 (2021), Heft 2, S. 122-145 [Special issue paper]
Synthesis of a lubricant to mimic the biorheological behavior of osteoarthritic and revision synovial fluid
Herbster, Maria; Nizinkovskyi, Rostyslav; Bollmann, Miriam; Bartel, Dirk; Lohmann, Christoph H.; Krüger, Manja; Halle, Thorsten; Bertrand, Jessica
In: Lubricants - Basel : MDPI, Bd. 9 (2021), Heft 9, Artikel 87, insges. 20 S.
Temperature resistance of Mo3Si - phase stability, microhardness, and creep properties
Kauss, Olha; Obert, Susanne; Bogomol, Iurii; Wablat, Thomas; Siemensmeyer, Nils; Naumenko, Konstantin; Krüger, Manja
In: Metals - Basel : MDPI, Bd. 11 (2021), Heft 4, Artikel 564, insges. 17 S.
Oxidation-resistant environmental barrier coatings for Mobased alloys - a review
Gatzen, Caren; Smokovych, Iryna; Scheffler, Michael; Krüger, Manja
In: Advanced engineering materials - Weinheim : Wiley-VCH Verl., Bd. 23 (2021), Heft 4, Artikel 2001016
Microstructure evolution and sequence of phase transition reactions through the solidification of Mo-Si-B alloy - a phase-field study
Kazemi, Omid; Hasemann, Georg; Krüger, Manja; Halle, Thorsten
In: Computational materials science - Amsterdam [u.a.] : Elsevier Science, Bd. 193 (2021), S. 1-7, Artikel 110422
A novel alloy development approach - biomedical equiatomic Ta-Nb-Ti alloy
Regenberg, Maximilian; Schmelzer, Janett; Hasemann, Georg; Bertrand, Jessica; Krüger, Manja
In: Metals - Basel : MDPI, Bd. 11 (2021), Heft 11, Artikel 1778, insges. 12 S.
Strengthening of additively manufactured Me-Si-B (Me = Mo, V) by Y2O3 particles
Schmelzer, Janett; Rittinghaus, Silja-Katharina; Wilms, Markus B.; Michael, Oliver; Krüger, Manja
In: International journal of refractory metals & hard materials - Amsterdam [u.a.] : Elsevier Science, Bd. 101 (2021), Artikel 105623
Microstructural characterization of arc-melted and directionally solidified near-eutectic molybdenum-silicon-boron alloys
Zhu, Linye; Ida, Shuntaro; Hasemann, Georg; Krüger, Manja; Yoshimi, Kyosuke
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science - 132 (2021), Artikel 107131, insgesamt 9 Seiten
In situ observation of ternary eutectic growth in a directionally solidified MoSiB alloy using highenergy synchrotron Xrays
Hasemann, Georg; Zhu, Linye; Hauschildt, Katja; Blankenburg, Malte; Ida, Schuntaro; Pyczak, Florian; Yoshimi, Kyosuke; Krüger, Manja
In: Advanced engineering materials - Weinheim : Wiley-VCH Verl., Bd. 23 (2021), Heft 11, Artikel 2100111, insges. 9 S.
Refractory metal coated alumina foams as support material for stem cell and fibroblasts cultivation
Hasemann, Georg; Betke, Ulf; Krüger, Manja; Walles, Heike; Scheffler, Michael
In: Materials - Basel : MDPI, Bd. 14 (2021), Heft 11, Artikel 2813
Dissertation
Phase field based study of microstructure evolution in solidification of Mo-rich Mo-Si-B alloys
Kazemi, Omid; Halle, Thorsten; Juhre, Daniel; Krüger, Manja
In: Magdeburg, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2021, XV, 99 Seiten [Literaturverzeichnis: Seite 87-96][Literaturverzeichnis: Seite 87-96]
Editor
Intermetallics 2021 - International Conference, 04-08 October 2021 : Educational Center Kloster Banz, Germany : programme and abstracts
Krüger, Manja
In: Jena, Germany: Conventus Congressmanagement & Marketing GmbH, 2021, 1 Online-Ressource (206 Seiten), ISBN: 978-3-948023-17-1 Kongress: Intermetallics 5 Bad Staffelstein 2021.10.04-08["Venue: Educational Center Kloster Banz, Hanns-Seidel-Stiftung e. V., 96231 Bad Staffelstein, Germany ... Conference organisation: Conventus Congressmanagement & Marketing GmbH" - Seite 5; Literaturangaben; "It is meanwhile a pleasant tradition to welcome you at our upcoming Intermetallics 2021 conference. In this successfully established series of conferences we already organize the fifth meeting, which is scheduled from 4th till 8th October 2021." - Vorwort]
2020
Book chapter
Deformation twinning in bcc iron - experimental investigation of twin formation assisted by molecular dynamics simulation
Ecke, Martin; Michael, Oliver; Wilke, Markus; Hütter, Sebastian; Krüger, Manja; Halle, Thorsten
In: Plasticity, damage and fracture in advanced materials - Cham : Springer ; Altenbach, Holm . - 2020, S. 43-51 - ( Advanced structured materials; 121)
Structural analysis of gas turbine blades made of Mo-Si-B under stationary thermo-mechanical loads
Kauss, Olha; Naumenko, Konstantin; Hasemann, Georg; Krüger, Manja
In: Advances in mechanics of high-temperature materials - Cham : Springer . - 2020, S. 79-91 - (Advanced structured materials; 117)
Peer-reviewed journal article
Microstructure evolution and mechanical properties of refractory Mo-Nb-V-W-Ti high-entropy alloys
Regenberg, Maximilian; Hasemann, Georg; Wilke, Markus; Halle, Thorsten; Krüger, Manja
In: Metals - Basel : MDPI - Vol. 10 (2020), 11, Article 1530, insgesamt 13 Seiten
Polymer derived ceramics from Si, B, SiB6, and Mo5SiB2 filler-loaded perhydropolysilazane precursors as protective and functional coatings for refractory metal alloys
Smokovych, Iryna; Gatzen, Caren; Krüger, Manja; Schwidder, Michael; Scheffler, Michael
In: Materials - Basel : MDPI - Vol. 13 (2020), 21, Article 4878, insgesamt 11 Seiten
Microstructure and compression properties of VSSV3B2 eutectic alloys in the V-Si-B system
Müller, Christopher; Hasemann, Georg; Regenberg, Maximilian; Betke, Ulf; Krüger, Manja
In: Materials - Basel : MDPI - Volume 13 (2020), issue 9, article 2100, 12 Seiten
Coating reactions on vanadium and V-Si-B Alloys during powder pack-cementation
Hasemann, Georg; Harris, Chad; Krüger, Manja; Perepezko, John H.
In: Materials - Basel : MDPI - Volume 13 (2020), issue 18, article 4099, 7 Seiten
The effects of Zr and La2O3 additions on the microstructural and mechanical properties of a Mo-6Si-5B alloy
Becker, Julia; Giese, Marcel; Krüger, Manja
In: IOP conference series / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882 (2020), Paper 012001, insgesamt 7 Seiten [Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
Recent advances in additive manufacturing of Mo-Si-B alloys - a status report onthe cooperative project LextrA
Krüger, Manja; Schmelzer, Janett; Fichtner, D.; Heinze, C.; Küsters, Y.; Rittinghaus, S. K.; Weisheit, A.; Heinz, R.; Gerking, L.; Gruber, K; Schmigalla, S.; Schulze, S.
In: IOP conference series / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882 (2020), Paper 012011, insgesamt 9 Seiten [ Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
Microstructure-property relations of eutectic V-Si and V-B alloys
Regenberg, Maximilian; Hasemann, Georg; Müller, Christopher; Krüger, Manja
In: IOP conference series / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882 (2020), Paper 012014, insgesamt 12 Seiten [ Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
First principles density functional theory calculations on the elastic properties of Mo-Si based solid solutions
Touzani, Rachid; Krüger, Manja
In: IOP conference series / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882 (2020), Paper 012024, insgesamt 10 Seiten [Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
A zone melting device for the in situ observation of directional solidification using high-energy synchrotron x rays
Gombola, C.; Hasemann, Georg; Kauffmann, A.; Sprenger, I.; Laube, S.; Schmitt, A.; Gang, F.; Bolbut, Volodymyr; Oehring, M.; Blankenburg, M.; Schell, N.; Staron, P.; Pyczak, F.; Krüger, Manja; Heilmaier, M.
In: Review of scientific instruments - [S.l.] : American Institute of Physics - Volume 91 (2020), issue 9, article 093901, 10 Seiten
Micromechanical characterization of Ce0.8Gd0.2O2FeCo2O4 dual phase oxygen transport membranes
Zeng, Fanlin; Malzbender, Jürgen; Baumann, Stefan; Schulze-Küppers, Falk; Krüger, Manja; Nijmeijer, Arian; Guillon, Olivier; Meulenberg, Wilhelm Albert
In: Advanced engineering materials - Weinheim : Wiley-VCH Verl., Bd. 22 (2020), Heft 6, Artikel 1901558
Phase and microstructural characterizations for Ce 0.8 Gd 0.2 O 2- -FeCo 2 O 4 dual phase oxygen transport membranes
Zeng, Fanlin; Malzbender, Jürgen; Baumann, Stefan; Krüger, Manja; Winnubst, Louis; Guillon, Olivier; Meulenberg, Wilhelm A.
In: Journal of the European Ceramic Society - Amsterdam [u.a.] : Elsevier Science, Bd. 40 (2020), Heft 15, S. 5646-5652
First principles density functional theory prediction of the crystal structure and the elastic properties of Mo 2ZrB 2 and Mo 2HfB 2
Touzani, Rachid Stefan; Krüger, Manja
In: Crystals - Basel : MDPI - Volume 10 (2020), issue 10, article 865, 14 Seiten
Printability and microstructural evolution of a near-eutectic three-phase V-based alloy
Schmelzer, Janett; Rittinghaus, Silja-Katharina; Gruber, Karl; Veit, Peter; Weisheit, Andreas; Krüger, Manja
In: Additive manufacturing - Amsterdam [u.a.] : Elsevier - Vol. 34 (2020), Artikelnummer 101208
Oxidation response of additively manufactured eutectic Mo-Si-B alloys
Becker, Julia; Fichtner, D.; Schmigalla, S.; Schultze, S.; Heinze, C.; Küsters, Y.; Hasemann, Georg; Schmelzer, Janett; Krüger, Manja
In: IOP conference series / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882 (2020), Paper 012002, insgesamt 9 Seiten [Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
Influence of Nb, Ti and Mo on microstructure and mechanical properties of vanadium solid solutions
Müller, Christopher; Touzani, Rachid S.; Betke, Ulf; Krüger, Manja
In: IOP conference series / Institute of Physics - London [u.a.] : Institute of Physics - Vol. 882 (2020), 012012, insgesamt 10 Seiten [ Symposium: Symposium on Materials and Joining Technology, Magdeburg, Germany, 7-8 September 2020]
Fracture toughness of single grains and polycrystalline Li7La3Zr2O12 electrolyte material based on a pillar splitting method
Nonemacher, Juliane Franciele; Arinichevab, Yulia; Yan, Gang; Finsterbusch, Martin; Krüger, Manja; Malzbender, Jürgen
In: Journal of the European Ceramic Society - Amsterdam [u.a.] : Elsevier Science, Bd. 40 (2020), Heft 8, S. 3057-3064
Dissertation
Failure analysis of coatings under thermo-mechanical loading
Nordmann, Joachim; Altenbach, Holm; Krüger, Manja
In: Magdeburg, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2020, xv, 110 Seiten, A1-A6, B1-B6 [Literaturverzeichnis: Seite 101-110][Literaturverzeichnis: Seite 101-110]
2019
Abstract
Alloying effects in vanadium solid solutions
Müller, Christopher; Hasemann, Georg; Krüger, Manja
In: Intermetallics 2019 - Jena, Germany : Conventus Congressmanagement & Marketing GmbH ; Heilmaier, Martin - 2019, Poster-ID: p-28, Seite 214
Microstructure-property relationship of vanadium solid solutions, two-phase and three-phase alloys
Müller, Christopher; Hasemann, Georg; Krüger, Manja
In: 2018 MRS Fall meeting & exhibit - Materials Research Society - 2018, ID PM06.04.07 [Konferenz: 2018 MRS Fall Meeting & Exhibit, Boston, Massachusetts, November 25-30, 2018]
Alloying effects in vanadium solid solutions
Müller, Christopher; Hasemann, Georg; Krüger, Manja
In: Beyond Nickel-Based Superalloys III - Kyoto University . - 2019 [Konferenz: 3rd International Conference on Beyond Nickel-Based Superalloys, Nara, Japan, Jun 11-14, 2019]
Book chapter
Effects of second phases in Mo-Zr Alloys - a study on phase evolution and mechanical properties
Becker, Julia; Siems, Heiko F.; Krüger, Manja
In: Advances in mechanics of high-temperature materials - Cham : Springer . - 2019, S. 93-105 [First online]
Peer-reviewed journal article
Processing of Mo silicide powders as filler particles in polymer-derived ceramic coatings for Mo-Si-B substrates
Krüger, Manja; Schmelzer, Janett; Smokovych, Irina; Lopez Barillao, Jennifer; Hasemann, Georg
In: Powder technology - Amsterdam [u.a.] : Elsevier Science, Bd. 352 (2019), S. 381-385
Site preference of V and its influence on the elastic properties in the boride series VxMo5-xSiB2 as studied by first principles density functional theory
Touzani, Rachid Stefan; Becker, Julia; Krüger, Manja
In: Journal of alloys and compounds - Lausanne : Elsevier . - 2019 [Online first]
Room temperature plastic deformability in V-rich VSiB alloys
Hasemann, Georg; Müller, Christopher; Grüner, D.; Wessel, E.; Krüger, Manja
In: Acta materialia - Amsterdam [u.a.] : Elsevier Science, Bd. 175 (2019), S. 140-147
Anisotropy of the mechanical properties of Li1·3Al0·3Ti1·7(PO4)3 solid electrolyte material
Yan, Gang; Yu, Shicheng; Yang, Weiguang; Li, Xiaoqiang; Tempel, Hermann; Kungl, Hans; Eichel, Rüdiger-A.; Krüger, Manja; Malzbender, Jürgen
In: Journal of power sources - New York, NY [u.a.] : Elsevier - Vol. 437 (2019), Artikel 226940 [Im Titel sind "1", "3", "0", "3", "1", "7", "4", und "3" tiefgestellt]
Experimental assessment of the microstructure evolution and liquidus projection in the Mo-rich Mo-Si-B system
Hasemann, Georg; Ida, S.; Zhu, L.; Iizawa, T.; Yoshimi, K.; Krüger, Manja
In: Materials and design - Amsterdam [u.a.] : Elsevier Science - Vol. 185 (2020), Artikel 108233, insgesamt 13 Seiten
Structure formation and mechanical properties of the high-entropy AlCuNiFeCr alloy prepared by mechanical alloying and spark plasma
Yurkova, A. I.; Cherniavsky, V. V.; Bolbut, Volodymyr; Krüger, Manja; Bogomol, Iurii
In: Journal of alloys and compounds - Lausanne : Elsevier, Bd. 786 (2019), S. 139-148
Addition of carbon fibers into B4C infiltrated with molten silicon
Solodkyi, I.; Bezdorozhev, O.; Vterkovskiy, M.; Bogomol, Iurii; Bolbut, Volodymyr; Krüger, Manja; Badica, P.; Loboda, P.
In: Ceramics international - Amsterdam [u.a.] : Elsevier Science, Bd. 45 (2019), Heft 1, S. 168-174
Microstructure and cyclic oxidation behavior of APS TBC systems drilled with various laser methods
Ebrahimzade, V.; Uchtmann, H.; Singheiser, L.; Krüger, Manja; Malzbender, J.
In: Surface and coatings technology - Amsterdam [u.a.] : Elsevier Science - Vol. 383 (2020), Artikelnr. 125018
Polymer derived ceramic materials from Si, B and MoSiB filler-loaded Perhydropolysilazane Precursor for oxidation protection
Smokovych, Iryna; Krüger, Manja; Scheffler, Michael
In: Journal of the European Ceramic Society - Amsterdam [u.a.] : Elsevier Science, Bd. 39 (2019), Heft 8, S. 3634-3642
Structural analysis of gas turbine blades made of Mo-Si-B under transient thermo-mechanical loads
Kauss, Olha; Tsybenko, H.; Naumenko, Konstantin; Hütter, Sebastian; Krüger, Manja
In: Computational materials science - Amsterdam [u.a.] : Elsevier Science, Bd. 165 (2019), S. 129-136
Controversial discussion on the existence of the Hf and Zr monoborides and experimental proof by atom probe tomography
Bolbut, Volodymyr; Seils, S.; Boll, T.; Chassaing, D.; Krüger, Manja
In: Materialia - Amsterdam : Elsevier - Vol. 6 (2019), Artikel 100322
The potential of mechanical alloying to improve the strength and ductility of Mo-9Si-8B-1Zr alloys - experiments and simulation
Krüger, Manja; Kauss, Olha; Naumenko, Konstantin; Burmeister, C.; Wessel, E.; Schmelzer, Janett
In: Intermetallics - Amsterdam [u.a.] : Elsevier Science - Vol. 113 (2019), Artikel 106558
Tailored oxidation barrier coatings for Mo-Hf-B and Mo-Zr-B alloys
Smokovych, Iryna; Bolbut, Volodymyr; Krüger, Manja; Scheffler, Michael
In: Materials - Basel : MDPI - Volume 12 (2019), issue 14, article 2215, insgesamt 13 Seiten
Dissertation
Development of density reduced Mo-Si-B alloys
Becker, Julia; Krüger, Manja; Skrotzki, Birgit
In: Barleben: docupoint Verlag, 2020, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2019, XVI, 117 Seiten - (Micro-macro transactions; Volume 36; docupoint Wissenschaft), ISBN: 978-3-86912-167-3 [Literaturverzeichnis: Seite 99-114][Literaturverzeichnis: Seite 99-114]
Development and implementation of a cyclic plasticity model with thermal softening for hot work tool steel
Jilg, Andreas; Altenbach, Holm; Krüger, Manja
In: Magdeburg, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2019, X, 104 Seiten [Literaturverzeichnis: Seite 93-102][Literaturverzeichnis: Seite 93-102]
Editor
Advances in mechanics of high-temperature materials
Naumenko, Konstantin; Krüger, Manja
In: Cham: Springer, 2019, 1 Online-Ressource - (Advanced structured materials; 117), ISBN: 978-3-030-23869-8
Article in conference proceedings
Laser additive manufacturing of intermetallic alloys for high-temperature applications
Rittinghaus, Silja-Katharina; Schmelzer, Janett; Wilms, Markus B.; Krüger, Manja
In: Industrial perspectives in additive technologies - Örebro, Sweden ; The Austrian Society for Metallurgy and Materials . - 2019, S. 110-117
2018
Peer-reviewed journal article
Density reduction of Mo-Si-B alloys by vanadium alloying
Becker, Julia; Betke, Ulf; Hoffmeister, Michael; Krüger, Manja
In: JOM - New York, NY : Springer Science + Business Media, Bd. 70 (2018), Heft 11, S. 2574-2581
Alloying effects in Mo-5X (X=Zr, Ti,V) Microstructural modifications and mechanical properties
Becker, Julia; Betke, Ulf; Wessel, Egbert; Krüger, Manja
In: Materials today - Amsterdam [u.a.] : Elsevier, Bd. 15 (2018), S. 314-321
Phase stability and temperature-dependent compressive strength of a low-density Fe 32.3Al 29.3Cu 11.7Ni 10.8Ti 15.9 alloy
Bolbut, Volodymyr; Wessel, Egbert; Krüger, Manja
In: Scripta materialia - Amsterdam [u.a.] : Elsevier Science, Bd. 150 (2018), S. 54-56
Printability of gas atomized Mo-Si-B powders by laser metal deposition
Schmelzer, Janett; Rittinghaus, S.-K.; Weisheit, A.; Stobik, M.; Paulus, J.; Gruber, K.; Wessel, E.; Heinze, C.; Krüger, Manja
In: International journal of refractory metals & hard materials - Amsterdam [u.a.] : Elsevier Science, Bd. 78 (2019), S. 123-126 [Online first]
Vacancy effects on the mechanical behavior of B2-FeAl intermetallics
Zamanzade, M.; Hasemann, Georg; Motz, C.; Krüger, Manja; Barnoush, A.
In: Materials science and engineering / A - Amsterdam : Elsevier, Bd. 712 (2018), S. 88-96
Analysis of iron aluminide coated beams under creep conditions in high-temperature four-point bending tests
Nordmann, Joachim; Thiem, Philipp; Cinca, Nuria; Naumenko, Konstantin; Krüger, Manja
In: The journal of strain analysis for engineering design - London : Sage Publ., Bd. 53 (2018), Heft 4, S. 255-265
Microstructures of ternary eutectic refractory Me-Si-B (Me = Mo, V) alloy systems
Hasemann, Georg; Krüger, Manja; Palm, Martin; Stein, Frank
In: Materials science forum - Uetikon : Trans Tech Publ., Bd. 941 (2018), S. 827-832
Microstructure and mechanical properties of a directionally solidified Mo-12Hf-24B alloy
Bolbut, Volodymyr; Bogomol, Iurii; Loboda, P.; Krüger, Manja
In: Journal of alloys and compounds - Lausanne : Elsevier, Bd. 735 (2018), S. 2324-2330
Prediction of thermodynamic properties of Mo-Si-B alloys from first-principles calculations
Hütter, Sebastian; Hasemann, Georg; Al-Karawi, J.; Krüger, Manja; Halle, Thorsten
In: Metallurgical and materials transactions / A - Boston : Springer, Bd. 49 (2018), Heft 12, S. 6075-6083
Dissertation
Modeling inelastic behaviour of Al-rich Ti-Al alloys at ultra-high homologous temperature
Chowdhury, Helal; Naumenko, Konstantin; Krüger, Manja
In: Barleben: docupoint Verlag, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2018, 153 Seiten - (Micro-macro transactions; Volume 30; Docupoint Wissenschaft), ISBN: 978-3-86912-145-1
Development of Mo-Hf-B and Mo-Zr-B alloys for high-temperature application
Bolbut, Volodymyr; Krüger, Manja; Halle, Thorsten
In: Magdeburg, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2018, XIV, 82 Blätter [Literaturverzeichnis: Blatt 76-82][Literaturverzeichnis: Blatt 76-82]
Article in conference proceedings
Additive Fertigung gasverdüster Mo-Si-B Pulver durch Laserauftragsschweißen
Schmelzer, Janett; Rittinghaus, S.-K.; Weisheit, A.; Stobik, M.; Paulus, J.; Gruber, K.; Wessel, E.; Krüger, Manja; Heinze, C.
In: Fachtagung Werkstoffe und Additive Fertigung - Sankt Augustin : Deutsche Gesellschaft für Materialkunde e. V. . - 2018, S. 244-249 [Konferenz: DGM-Tagung, 25.-26. April 2018, Potsdam]
2017
Abstract
Alloy design and microstructure of refractory Mo-V-Nb-W-Tix HEAs
Hasemann, Georg; Wilke, Markus; Halle, Thorsten; Krüger, Manja
In: Intermetallics 2017 - Bad Staffelstein : Educational Center Kloster Banz, S. 97-98 [Konferenz: Intermetallics 2017]
Formation of silicides in mechanically alloyed V-Si solid solution powders
Schmelzer, Janett; Günther, Christoph Daniel; Krüger, Manja
In: Intermetallics 2017 - Bad Staffelstein : Educational Center Kloster Banz, S. 117-118 [Konferenz: Intermetallics 2017]
Microstructure and creep properties of near-eutectic Mo-Zr-B and Mo-Hf-B alloys
Bolbut, Volodymyr; Krüger, Manja
In: Intermetallics 2017 - Bad Staffelstein : Educational Center Kloster Banz, S. 119-120 [Konferenz: Intermetallics 2017]
Creep properties of the Mo3Si and Mo5SiB2 phases in the Mo-Si-B alloy system
Popovych, Olha; Bogomol, Iurii; Naumenko, Konstantin; Krüger, Manja
In: Intermetallics 2017 - Bad Staffelstein : Educational Center Kloster Banz, S. 115-116 [Konferenz: Intermetallics 2017]
Book chapter
Kriechen von Mo-Si-B-Legierungen und Simulation der Kriechverformung von Turbinenschaufeln
Popovych, Olha; Naumenko, Konstantin; Krüger, Manja
In: 16. Sommerkurs Werkstoffe und Fügen - Magdeburg, 08. und 09. September 2017 , korrigierte Auflage - Magdeburg : Universitätsbibliothek, S. 185-192
Der Einfluss der Legierungselemente Ti, V und Zr auf die mechanischen Eigenschaften des Mo-Mischkristalls
Becker, Julia; Krüger, Manja
In: 16. Sommerkurs Werkstoffe und Fügen - Magdeburg, 08. und 09. September 2017 , 2017 , korrigierte Auflage - Magdeburg : Universitätsbibliothek ; Mook, Gerhard, S. 169-178
Gerichtet erstarrte Mo-Zr-B- und Mo-Hf-B-Legierungen
Bolbut, Volodymyr; Bogomol, Iurii; Krüger, Manja
In: 16. Sommerkurs Werkstoffe und Fügen - Magdeburg, 08. und 09. September 2017 , korrigierte Auflage - Magdeburg : Universitätsbibliothek, S. 179-184
Bildung von Siliziden in mechanisch legierten V-Si Mischkristallpulvern
Schmelzer, Janett; Baumann, Torben; Dieck, Sebastian; Krüger, Manja
In: 16. Sommerkurs Werkstoffe und Fügen - Magdeburg, 08. und 09. September 2017 , korrigierte Auflage - Magdeburg : Universitätsbibliothek, S. 161-168
Peer-reviewed journal article
Prediction of phase distribution pattern in phase field simulations on Mo 5SiB 2-primary areas in near eutectic Mo-Si-B alloy
Kazemi, 0.; Hasemann, G.; Krüger, Manja; Halle, Thorsten
In: IOP conference series / Materials science and engineering - London [u.a.] : Institute of Physics - Vol. 181.2017, Art. 012033, insgesamt 7 S. [Kongress: 19th Chemnitz Seminar on Materials Engineering,16./17. March 2017, Chemnitz, Germany]
Process-oriented microstructure evolution of V SS-V 3Si-V 5SiB 2 materials
Krüger, Manja; Köppe-Grabow, Birte
In: Practical metallography - Berlin : de Gruyter, Bd. 54 (2017), Heft 5, S. 293-307 [Online unter:
Reviewing the class of Al-rich Ti-Al alloys - modeling high temperature plastic anisotropy and asymmetry
Chowdhury, Helal; Altenbach, Holm; Krüger, Manja; Naumenko, Konstantin
In: Mechanics of advanced materials and modern processes - Berlin : Springer, Bd. 3 (2017), insges. 20 S.
Gerichtet erstarrte Mo-Zr-B-Legierungen - Directionally solidified Mo-Zr-B alloys
Bolbut, Volodymyr; Bogomol, Iurii; Bauer, C.; Krüger, Manja
In: Materials science and engineering technology - Weinheim : Wiley-VCH, Bd. 48 (2017), S. 1113-1124
Polymer derived oxidation barrier coatings for Mo-Si-B alloys
Smokovych, Iryna; Hasemann, Georg; Krüger, Manja; Scheffler, Michael
In: Journal of the European Ceramic Society - Amsterdam [u.a.] : Elsevier Science, Bd. 37 (2017), Heft 15, S. 4559-4565
Rate dependent tension-compression-asymmetry of Ti-61.8at%Al alloy with long period superstructures at 1050 °C
Chowdhury, Helal; Naumenko, Konstantin; Altenbach, Holm; Krüger, Manja
In: Materials science and engineering / A - Amsterdam : Elsevier, Bd. 700 (2017), S. 503-511
Critical stresses estimation by crystal viscoplasticity modeling of rate-dependent anisotropy of Al-rich TiAl alloys at high temperature
Chowdhury, Helal; Naumenko, Konstantin; Altenbach, Holm; Krüger, Manja
In: Archive of applied mechanics - Berlin : Springer . - 2017, insges. 17 S.
Comparison of microstructure and adhesion strength of plasma, flame and high velocity oxy-fuel sprayed coatings from an iron aluminide powder
Thiem, Philipp G.; Chornyi, A.; Smirnov, L. V.; Krüger, Manja
In: Surface and coatings technology - Amsterdam [u.a.] : Elsevier Science, Bd. 324 (2017), S. 498-508
Dissertation
Einfluss der Oberflächenmodifizierung auf die Fließeigenschaften von kohäsiven Schüttgütern
Todorova, Zinaida; Scheffler, Franziska; Krüger, Manja
In: Barleben: docupoint Verlag, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Verfahrens- und Systemtechnik 2017, X, 136 Seiten - (Micro-macro transactions; Volume 29; Docupoint Wissenschaft), ISBN: 978-3-86912-137-6 [Literaturverzeichnis: Seite 127-132][Literaturverzeichnis: Seite 127-132]
Microstructure and properties of near-eutectic Mo-Si-B alloys for high temperature applications
Hasemann, Georg; Krüger, Manja
In: Aachen: Shaker Verlag, Dissertation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2017, XIV, 90 Seiten - (Berichte aus der Werkstofftechnik), ISBN: 3844054081 [Literaturverzeichnis: Seite 77-88][Literaturverzeichnis: Seite 77-88]
Habilitation
Innovative metallische Hochtemperaturwerkstoffe
Krüger, Manja; Halle, Thorsten
In: Magdeburg, Habilitation Otto-von-Guericke-Universität Magdeburg, Fakultät für Maschinenbau 2017, 147 Seiten [Literaturverzeichnis: Seite 47-60; Es handelt sich um eine kumulative Schrift, die aus Artikeln und einem vorangestellten Beitrag besteht.][Literaturverzeichnis: Seite 47-60; Es handelt sich um eine kumulative Schrift, die aus Artikeln und einem vorangestellten Beitrag besteht.]
2016
Peer-reviewed journal article
Microstructure variations and creep properties of novel high temperature V-Si-B materials
Krüger, Manja; Bolbut, Volodymyr; Gang, Florian; Hasemann, Georg
In: JOM - New York, NY : Springer Science + Business Media, Bd. 68 (2016), Heft 11, S. 2811-2816
Hardening of VSi alloys during high energy ball milling
Schmelzer, Janett; Baumann, Torben; Dieck, Sebastian; Krüger, Manja
In: Powder technology - Amsterdam [u.a.] : Elsevier Science, Bd. 294 (2016), S. 493-497
Structure and Properties of Directionally Solidified Mo-8.7 Si-18 B Alloys
Bogomol, Iurii; Popovych, Olha; Krüger, Manja; Loboda, Petro
In: Research Bulletin of the National Technical University of Ukraine "Kyiv Politechnic Institute", Kyiv Politechnic Institute, 2016, Bd. 0, Heft 2, S. 69
Near-eutectic ternary Mo-Si-B alloys - microstructures and creep properties
Hasemann, Georg; Kaplunenko, D.; Bogomol, Iurii; Krüger, Manja
In: JOM - New York, NY : Springer Science + Business Media, Bd. 68 (2016), Heft 11, S. 2847-2853
Similarities and differences in mechanical alloying processes of V-Si-B and Mo-Si-B powders
Krüger, Manja; Schmelzer, Janett; Helmecke, Maria
In: Metals - Basel : MDPI - Vol. 6.2016, 10, Art. 241, insgesamt 16 S.
Phase field simulation of a directional solidification of a ternary eutectic Mo-Si-B Alloy
Kazemi, O.; Hasemann, Georg; Krüger, Manja; Halle, Thorsten
In: IOP conference series / Materials science and engineering - London [u.a.] : Institute of Physics - Vol. 118.2016, 1, Art. 012028, insgesamt 9 S. [18th Chemnitz Seminar on Materials Engineering]
High temperature compression strength and oxidation of a V-9Si-13B alloy
Krüger, Manja
In: Scripta materialia - Amsterdam [u.a.] : Elsevier Science, Bd. 121 (2016), S. 75-78
Microstructure evolution of a directionally solidified ternary eutectic Mo-Si-B alloy
Krüger, Manja; Hasemann, Georg; Kazemi, Omid; Halle, Thorsten
In: Materials science forum - Baech : Trans Tech Publications Ltd., Bd. 879 (2016), S. 1226-1232
Non-peer-reviewed journal article
Struktura i vlastivosti sprjamovano zakristalizovanogo splavu sistemi Mo-8,7 Si-18 B - Structure and properties of directionally solidified Mo-8.7 Si-18 B alloys
Bogomol, Iurii; Popovych, Olha; Hasemann, Georg; Krüger, Manja; Loboda, P. I.
In: Naukovi visti Nacional'noho Techničnoho Universytetu Ukraïny Kyïvs'kyj Politechničnyj Instytut / Nacional'nyj techničnyj universytet Ukraïny "Kyïvs'kyj politechničnyj instytut" - Kyïv . - 2016, Heft 2, S. 69-76
2015
Peer-reviewed journal article
Microstructure, flow behavior, and bulk texture evolution of cold drawn copper-silver composites
Dodla, S.; Thiem, Philipp; Krüger, Manja; Dietrich, D.; Bertram, Albrecht
In: Journal of alloys and compounds - Lausanne : Elsevier, Bd. 647 (2015), S. 519-527
Impact of phase distribution on the fracture toughness of high temperature resistant Mo-Si-B Alloys - Der Einfluss der Phasenverteilung auf die Bruchzähigkeit von hochtemperatur-beständigen Mo-Si-B-Legierungen
Becker, Julia; Krüger, Manja
In: Practical metallography - München : Hanser, Bd. 52 (2015), Heft 6, S. 295-313
Finite element simulation of lamellar coppersilver composites
Dodla, Srihari; Bertram, Albrecht; Krüger, Manja
In: Computational materials science - Amsterdam [u.a.] : Elsevier Science, Bd. 101 (2015), S. 29-38
Polymer-derived ceramics as innovative oxidation barrier coatings for Mo-Si-B alloys
Hasemann, Georg; Baumann, Torben; Dieck, Sebastian; Rannabauer, Stefan; Krüger, Manja
In: Metallurgical and materials transactions. A, Physical metallurgy and materials science - Boston : Springer, Bd. 46 (2015), Heft 4, S. 1455-1460
Mechanical properties and failure probability of compact agglomerates
Russell, Alexander; Schmelzer, Janett; Müller, Peter; Krüger, Manja; Tomas, Jürgen
In: Powder technology - Amsterdam [u.a.] : Elsevier Science, Bd. 286 (2015), S. 546-556
Simulation of flow behavior and texture evolution of Cu-Ag composites incorporating XRD data
Dodla, Srihari; Bertram, Albrecht; Krüger, Manja
In: Technische Mechanik - Magdeburg : Inst, Bd. 35 (2015), Heft 2, S. 71-79
Dissertation
Identification technique of mechanism-based constitutive model for cast iron under thermo-mechanical loads
Levdokymov, Mykola; Altenbach, Holm; Krüger, Manja
In: Magdeburg, Univ., Fak. für Maschinenbau, Diss., 2015, IX, 132 S.
Experimental investigations and numerical simulations of lamellar Cu-Ag composites
Dodla, Srihari; Bertram, Albrecht; Krüger, Manja
In: Barleben: Docupoint-Verl., Zugl.: Magdeburg, Univ., Fak. für Maschinenbau, Diss., 2015, XIX, 130 S. - (Micro-macro transactions; 16; Docupoint Wissenschaft), ISBN: 978-3-86912-116-1 [Mit engl. u. dt. Zsfassung. - Literaturverzeichnis S. 109 - 121][Mit engl. u. dt. Zsfassung. - Literaturverzeichnis S. 109 - 121]
2014
Book chapter
APS gespritzte Beschichtung aus Eisenaluminidpulvern unter thermischer und mechanischer Belastung
Thiem, Philipp Georg; Chorny, A.; Smirnov, I.; Krüger, Manja; Halle, Thorsten
In: 15. Sommerkurs Werkstoffe und Fügen - Magdeburg, 12. und 13. September 2014 , 2014 - Magdeburg : Univ., S. 157-164 Kongress: Sommerkurs Werkstoffe und Fügen 15 Magdeburg 2014.09.12-13
Mikrostruktur und Oxidationsbeständigkeit der Legierung Mo-8,7Si-17,4B
Bolbut, Volodymyr; Hasemann, Georg; Bogomol, Iurii; Loboda, P. I.; Krüger, Manja
In: 15. Sommerkurs Werkstoffe und Fügen - Magdeburg, 12. und 13. September 2014 , 2014 - Magdeburg : Univ., S. 135-142 Kongress: Sommerkurs Werkstoffe und Fügen 15 Magdeburg 2014.09.12-13
Werkstoffe
Scheffler, Michael; Halle, Thorsten; Krüger, Manja; Heyn, Andreas
In: Integrated Design Engineering - Ein interdisziplinäres Modell für die ganzheitliche Produktentwicklung / Vajna , Sándor - Berlin, Heidelberg : Springer Vieweg ; Vajna, Sándor *1952-* . - 2014, S. 199-238
Mikrostruktur und Kriechverhalten einer nah-eutektischen gerichtet erstarrten Mo-Si-B-Legierung
Hasemann, Georg; Bogomol, Iurii; Schliephake, Daniel; Loboda, Petr I.; Krüger, Manja
In: 15. Sommerkurs Werkstoffe und Fügen: Magdeburg, 12. und 13. September 2014 - Magdeburg: Univ., S. 127-134Kongress: Sommerkurs Werkstoffe und Fügen 15 (Magdeburg : 2014.09.12-13)
Oxidationsschutz von Molybdän-Basiswerstoffen durch Beschichtung mit präkeramischen Polymeren
Dieck, Sebastian; Baumann, Torben; Hasemann, Georg; Rannabauer, Stefan; Krüger, Manja
In: 15. Sommerkurs Werkstoffe und Fügen - Magdeburg, 12. und 13. September 2014 - Magdeburg: Univ., S. 143-148, 2014Kongress: Sommerkurs Werkstoffe und Fügen 15 (Magdeburg : 2014.09.12-13)
Der Einfluss der Korngrösse und der Phasenverteilung auf die Bruchzähigkeit von Mo-Si-B-Legierungen
Köppl, Julia; Krüger, Manja
In: 15. Sommerkurs Werkstoffe und Fügen - Magdeburg, 12. und 13. September 2014 , 2014 - Magdeburg : Univ., S. 119-126 Kongress: Sommerkurs Werkstoffe und Fügen 15 Magdeburg 2014.09.12-13
Charakterisierung von Verformungszwillingen in Meteoriten und kubisch-raumzentrierten Eisenwerkstoffen mittels Rückstreuelektronenbeugung (EBSD)
Ecke, Martin; Wendt, U.; Heyse, Hartmut; Krüger, Manja
In: 15. Sommerkurs Werkstoffe und Fügen - Magdeburg, 12. und 13. September 2014 , 2014 - Magdeburg : Univ., S. 149-156 Kongress: Sommerkurs Werkstoffe und Fügen 15 Magdeburg 2014.09.12-13
Peer-reviewed journal article
Vacancy strengthening in Fe 3Al iron aluminides
Hasemann, Georg; Schneibel, J. H.; Krüger, Manja; George, E. P.
In: Intermetallics - Amsterdam [u.a.]: Elsevier Science, Bd. 54.2014, S. 95-103
Characterization of deformation twins in meteorites an dynamically loaded ferrous materials by means of Electron Backscatter Diffraction, EBSD - Charakterisierung von Verformungszwillingen in Meteoriten und dynamisch beanspruchten Eisenwerkstoffen mittels Rückstreuelektronenbeugung, EBSD
Ecke, Martin; Schwarz, Friederike; Krüger, Lutz; Wilke, Markus; Heyse, Hartmut; Wendt, Ulrich; Krüger, Manja
In: Practical metallography - München : Hanser, Bd. 51 (2014), Heft 11, S. 765 - 784
Correlation between microstructure and properties of fine grained Mo-Mo 3Si-Mo 5SiB 2 alloys
Krüger, Manja; Jain, P.; Kumar, K. S.; Heilmaier, M.
In: Intermetallics - Amsterdam [u.a.]: Elsevier Science, Bd. 48.2014, S. 10-18
Microstructure and creep properties of a near-eutectic directionally solidified multiphase Mo-Si-B alloy
Hasemann, Georg; Bogomol, Iurii; Schliephake, Daniel; Loboda, Petr I.; Krüger, Manja
In: Intermetallics - Amsterdam [u.a.]: Elsevier Science, Bd. 48.2014, S. 28-33
2013
Book chapter
Development of novel metallic high temperature materials by microstructural design
Heilmaier, Martin; Rösler, Joachim; Mukherji, Debashis; Krüger, Manja
In: Microstructural design of advanced engineering materials - Weinheim : Wiley-VCH-Verl. . - 2013, S. 467-494
Peer-reviewed journal article
Effects of Zr additions on the microstructure and the mechanical behavior of PM Mo-Si-B alloys
Krüger, Manja; Schliephake, Daniel; Jain, P.; Kumar, K. S.; Schumacher, G.; Heilmaier, M.
In: JOM - New York, NY : Springer Science + Business Media, Bd. 65 (2013), Heft 2, S. 301-306
A study on effect of reactive and rare earth element additions on the oxidation behavior of MoSiB system
Majumdar, Sanjib; Burk, S.; Schliephake, D.; Krüger, Manja; Christ, H.-J.; Heilmaier, M.
In: Oxidation of metals - Dordrecht [u.a.] : Springer Science + Business Media B.V, Bd. 80 (2013), Heft 3/4, S. 219-230
Multiphase Mo-Si-B alloys processed by directional solidification
Krüger, Manja; Hasemann, Georg; Bogomol, Iurii; Loboda, Petr I.
In: MRS online proceedings library / Materials Research Society - Warrendale, Pa. : MRS, Bd. 1516 (2013)
2012
Book chapter
Vergleichende Untersuchungen zum Rissausbreitungsverhalten von intermetallischen Werkstoffen für Hochtemperaturanwendungen
Krüger, Manja; Dietze, Gabriele; Sturm, Daniel; Schloth, Patrick
In: Fortschritte in der Metallographie - Frankfurt : Inventum ; Keßler, Olaf *1965-* . - 2012, S. 161-166
Deformation and fracture of Mo-silicide alloys at ultrahigh temperatures
Krüger, Manja; Saage, H.; Heilmaier, M.; Jain, P.; Kumar, K. S.
In: Creep and fracture of engineering materials and structures - proceedings of the 12th International Conference on Creep and Fracture of Engineering Materials and Structures (JIMIS 11), Kyoto, Japan, May 27-31, 2012 - Sendai: Japan Institute of Metals . - 2012, insges. 4 S.Kongress: International Conference on Creep and Fracture of Engineering Materials and Structures (JIMIS 11) 12 (Kyoto, Japan : 2012.05.27-31)
Creep deformation characteristics of Al-rich Ti-Al alloys
Sturm, Daniel; Heilmaier, Martin; Naumenko, Konstantin; Kozhar, Sergii; Krüger, Manja
In: Creep and fracture of engineering materials and structures - proceedings of the 12th International Conference on Creep and Fracture of Engineering Materials and Structures (JIMIS 11), Kyoto, Japan, May 27-31, 2012 - Sendai: Japan Institute of Metals, 2012 . - 2012, insges. 4 S.Kongress: International Conference on Creep and Fracture of Engineering Materials and Structures (JIMIS 11) 12 (Kyoto, Japan : 2012.05.27-31)
Vergleichende Untersuchungen zum Rissausbreitungsverhalten von intermetallischen Werkstoffen für Hochtemperaturanwendungen
Krüger, Manja; Dietze, Gabriele; Sturm, Daniel; Schloth, Patrick
In: Fortschritte in der Metallographie - Frankfurt: Inventum . - 2012, S. 161-166
Original article in peer-reviewed international journal
The effects of boron addition on the microstructure and mechanical properties of CoRe-based high-temperature alloys
Mukherji, D.; Rösler, J.; Krüger, Manja; Heilmaier, M.; Bölitz, M.-C.; Völkl, R.; Glatzel, U.; Szentmiklósi, L.
In: Scripta materialia. - Oxford : Elsevier, Bd. 66.2012, 1, S. 60-63
Original article in peer-reviewed periodical-type series
Effect of ZR additions on the deformation and fracture behaviour of three phase Mo-Si-B alloys
Krüger, Manja; Saage, Holger; Heilmaier, Martin; Jain, Padam; Kumar, K. Sharvan
In: Non-linear response of conventional & advanced materials, and multi-scale modeling/ International Symposium on Plasticity and Its Current Applications - Fulton, Maryland, USA: NEAT Press, 2012 . - 2012, S. 268-270Kongress: International Symposium on Plasticity and its Current Applications 18 (San Juan, Puerto Rico : 2011.01.03-08)
2011
Book chapter
Der Einfluss des Herstellungsprozesses auf die Eigenschaften von Mo-Si-B-Legierungen
Krüger, Manja; Heilmaier, M.; Shyrska, V.; Loboda, P. I.
In: 14. Sommerkurs Werkstoffe und Fügen , 2011 - Magdeburg : Universität Magdeburg, S. 193-200 Kongress: Sommerkurs Werkstoffe und Fügen 14 Magdeburg 2011.09.23-24
Charakterisierung der mechanischen Eigenschaften einer intermetallischen Fe 3Al-basierten Gusslegierung
Gang, F.; Krüger, Manja; Schneibel, J. H.; Heilmaier, M.
In: 14. Sommerkurs Werkstoffe und Fügen , 2011 - Magdeburg : Universität Magdeburg ; Mook, Gerhard, S. 185-192 Kongress: Sommerkurs Werkstoffe und Fügen 14 Magdeburg 2011.09.23-24
Mechanisches Verhalten von Fe 3Al in Abhängigkeit der vorangegangenen Wärmebehandlung
Hasemann, G.; Schneibel, J. H.; Krüger, Manja; George, E. P.
In: 14. Sommerkurs Werkstoffe und Fügen , 2011 - Magdeburg : Universität Magdeburg ; Mook, Gerhard, S. 201-206 Kongress: Sommerkurs Werkstoffe und Fügen 14 Magdeburg 2011.09.23-24
Article in conference proceedings
Low cycle fatigue behaviour of Fe3Al-based alloys in comparison with cast Al-Si
Krüger, Manja; Gang, F.; Schneibel, J. H.; Wegener, Matthias; Bähr, Rüdiger; Heilmaier, M.
In: FeAl2011 - Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Lanzarote (Canary Island), 05 - 07 October 2011 / [Facultad de Químicas, Universidad Complutense de Madrid. Conference chairperson: Francisco J. Pérez Trujillo] - Madrid, 2011 . - 2011, S. 117-120
Dependence of the yield stress of Fe3Al on heat treatment
Hasemann, Georg; Schneibel, J. H.; Krüger, Manja; George, E. P.
In: FeAl2011 - Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Lanzarote (Canary Island), 05 - 07 October 2011 - Madrid, S. 109-112
Original article in peer-reviewed international journal
Fatigue resistance of Fe 3 Al-based alloys
Gang, Florian; Krüger, Manja; Laskowsky, Alexandra; Rühe, Heike; Schneibel, Joachim H.; Heilmaier, Martin
In: MRS online proceedings library - Warrendale, Pa. : MRS, Bd. 1295 (2011)
Modification of MoSi alloy microstructure by small additions of Zr
Mousa, M.; Wanderka, N.; Timpel, M.; Singh, S.; Krüger, Manja; Heilmaier, M.; Banhart, J.
In: Ultramicroscopy. - New York, NY [u.a.] : Elsevier, Bd. 111.2011, 6, S. 706-710
Phase continuity in high temperature MoSiB alloys - a FIB-tomography study
Hassomeris, O.; Schumacher, G.; Krüger, Manja; Heilmaier, M.; Banhart, J.
In: Intermetallics. - Barking : Elsevier Science Publ., Bd. 19.2011, 4, S. 470-475
Oxidation behavior of Mo-Si-B-(X) alloys - macro- and microalloying (X= Cr, Zr, La 2O 3)
Burk, S.; Gorr, B.; Krüger, Manja; Heilmaier, M.; Christ, H.-J.
In: JOM - New York, NY : Springer Science + Business Media, Bd. 63 (2011), Heft 12, S. 32-36
Microstructural and mechanical properties of ternary Mo-Si-B alloys resulting from different processing routes
Krüger, Manja; Heilmaier, Martin; Shyrska, Veronika; Loboda, Petr I.
In: MRS online proceedings library / Materials Research Society - Warrendale, Pa. : MRS, Bd. 1295 (2011)
Original article in peer-reviewed periodical-type series
Beschreibung der Rissausbreitung in ternären Mo-Si-B-Werkstoffen mittels metallographischer Zielpräparation
Krüger, Manja; Dietze, Gabriele
In: Fortschritte in der Metallographie - Frankfurt [Main] : MAT-INFO, Werkstoff-Informationsges. , 2011 ; Wanner, Alexander, S. 165-170 - (Sonderbände der praktischen Metallographie; 43) Kongress: Metallographie-Tagung 45 Karlsruhe 2011.09.14-16
2010
Dissertation
Pulvermetallurgische Herstellung und Charakterisierung von oxidationsbeständigen Molybdänbasislegierungen für Hochtemperaturanwendungen
Krüger, Manja
In: Berlin: Logos, Zugl.: Magdeburg Otto-von-Guericke-Universität, Fakultät für Maschinenbau, Diss., 2010, 185 S., Ill., graph. Darst., 21 cm, ISBN: 978-3-8325-2640-5
Original article in peer-reviewed periodical-type series
Recent advances in the development of mechanically alloyed Mo silicide alloys
Heilmaier, Martin; Krüger, Manja; Saage, Holger
In: Ductility of bulk nanostructured materials - Stafa-Zurich [u.a.] : ttp, Trans Tech Publ. , 2010 ; Zhao, Yonghao, S. 549-558
Synthesis and characterization of lamellar and fibre-reinforced NiAl-Mo and NiAl-Cr
Haenschke, T.; Gali, A.; Heilmaier, M.; Krüger, Manja; Bei, H.; George, E. P.
In: Journal of physics - Bristol : IOP Publ. , 2004 - 240.2010, Art. 012063, insges. 5 S.
Influence of processing on the microstructure and mechanical behaviour of Mo-Si-B alloys
Krüger, Manja; Saage, H.; Heilmaier, M.; Böning, M.; Kestler, H.
In: Journal of physics / Conference series - Bristol : IOP Publ. , 2004 - 240.2010, Art. 012087, insges. 5 S.
2009
Article in conference proceedings
Mechanical properties of mechanically alloyed Mo-Si-B materials for elevated temperature applications
Krüger, Manja; Saage, Holger; Heilmaier, Martin; Jéhanno, Pascal; Böning, Mike
In: Macro- to -nano-scale inelastic behavior of materials: plasticity, fatigue & fracture - Fulton, Md. : NEAT Press . - 2009 Kongress: International Symposium on Plasticity and its Current Applications 15 St. Thomas 2009.01.03-08
Influence of processing on the microstructure and mechanical properties of Mo-Si-b alloys
Krüger, Manja; Saage, Holger; Heilmaier, M.; Jéhanno, P.; Böning, M.; Kestler, H.; Shyrska, V.; Dudka, A.; Loboda, P.
In: 17th Plansee Seminar 2009 ; Vol. 4 / International Conference on High Performance P-M Materials , 2009 - Reutte - 2009, Art. RM 80 Kongress: Plansee Seminar 17 Reutte 2009.05.25-29
Original article in peer-reviewed international journal
Ductilization of MoSi solid solutions manufactured by powder metallurgy
Saage, H.; Krüger, Manja; Sturm, Daniel; Heilmaier, M.; Schneibel, Joachim H.; George, E.; Heatherly, L.; Somsen, Ch.; Eggelere, G.; Yang, Y.
In: Acta materialia - Kidlington : Elsevier Science, Bd. 57 (2009), Heft 13, S. 3895-3901
Microstructures of CoReCr, MoSi and MoSiB high-temperature alloys
Depka, T.; Somsen, Ch.; Eggeler, G.; Mukherji, D.; Rösler, J.; Krüger, Manja; Saage, H.; Heilmaier, M.
In: Materials science & engineering - Amsterdam [u.a.] : Elsevier, Bd. 510/511 (2009), S. 337-341
Metallic materials for structural applications beyond nickel-based superalloys
Heilmaier, M.; Krüger, Manja; Saage, H.; Rösler, J.; Mukherji, D.; Glatzel, U.; Völkl, R.; Hüttner, R.; Eggeler, G.; Somsen, Ch.; Depka, T.; Christ, H.-J.; Gorr, B.; Burk, S.
In: JOM - New York, NY : Springer Science + Business Media, Bd. 61 (2009), Heft 7, S. 61-67
Original article in peer-reviewed periodical-type series
Current status of Mo-Si-B silicide alloys for ultra-high temperature applications
Heilmaier, Martin; Saage, Holger; Krüger, Manja; Jehanno, Pascal; Böning, Mike; Kestler, Heinrich
In: Advanced intermetallic-based alloys for extreme environment and energy applications - Warrendale, Pa. : MRS , 2009 ; Palm, Martin - 2009, Paper-Nr. 1128-U07-07 - (Materials Research Society symposium proceedings; 1128) Kongress: MRS fall meeting Boston, Mass. 2008.12.01-04
2008
Book chapter
Enhanced plasticity of mechanically alloyed Mo-based materials for high temperature applications
Krüger, Manja; Saage, Holger; Heilmaier, Martin; Jéhanno, Pascal; Böning, Mike
In: Mechanics & mechanisms of finite plastic deformation - Fulton, Md. : NEAT Press . - 2008, S. 193-195 Kongress: International Symposium on Plasticity and its Current Applications 14 Kona, Hawaii 2008.01.03-08
Mo-Mo 5SiB 2-Mo 3Si alloys resistant to high temperature oxidation
Jéhanno, P.; Böning, M.; Kestler, H.; Heilmaier, Martin; Krüger, Manja
In: Proceedings of the 7th International Conference on Tungsten, Refractory and Hardmaterials 2008 - Washington, S. 921-931 Kongress: International Conference on Tungsten, Refractory and Hardmaterials 7 Washington, DC 2008.06.08-12
Subsurface imaging using moving electromagnetic fields and surface acoustic waves
Mook, Gerhard; Michel, Fritz; Simonin, Juri; Krüger, Manja; Luther, Mathias
In: Emerging technologies in non-destructive testing - London [u.a.] : Taylor & Francis . - 2008, S. 275-280 Kongress: ETNDT 4 Stuttgart 2007.04.02-04
Original article in peer-reviewed international journal
Mechanically alloyed Mo-Si-B alloys with continuous α-Mo matrix and improved mechanical properties
Krüger, Manja; Franz, S.; Saage, Holger; Heilmaier, Martin; Schneibel, J. H.; Jéhanno, P.; Böning, M.; Kestler, H.
In: Intermetallics - Barking : Elsevier Science Publ., Bd. 16 (2008), Heft 7, S. 933-941
Molybdenum alloys for high temperature applications in air
Jéhanno, P.; Böning, M.; Kestler, H.; Heilmaier, Martin; Saage, Holger; Krüger, Manja
In: Powder metallurgy - London : [Verlag nicht ermittelbar], Bd. 51 (2008), Heft 2, S. 99-102
2007
Book chapter
Mechanisches Legieren von Molybdän-Basislegierungen für Hochtemperaturanwendungen
Krüger, Manja; Saage, Holger; Franz, S.; Heilmaier, Martin
In: 13. Sommerkurs Werkstoffe und Fügen , 2007 - Magdeburg : Univ., S. 10-21
Subsurface imaging using moving electromagnetic fields and surface acoustic waves
Mook, Gehard; Michel, Fritz; Simonin, Jouri; Krüger, Manja; Luther, M.
In: 13. Sommerkurs Werkstoffe und Fügen , 2007 - Magdeburg : Univ. ; Mook, Gerhard, S. 217-223
Detektion von Defekten in adaptiven CFK-Laminaten mittels bildgebender Laservibrometrie
Krüger, Manja; Mook, Gerhard
In: 13. Sommerkurs Werkstoffe und Fügen/ Sommerkurs Werkstoffe und Fügen - Magdeburg: Univ. . - 2007, S. 224-235
Detektion von Defekten in adaptiven CFK-Laminaten mittels bildgebender Laservibrometrie
Krüger, Manja; Mook, Gerhard
In: 13. Sommerkurs Werkstoffe und Fügen , 2007 - Magdeburg : Univ., S. 224-235
Subsurface imaging using moving electromagnetic fields and surface acoustic waves
Mook, Gehard; Michel, Fritz; Simonin, Jouri; Krüger, Manja; Luther, M.
In: 13. Sommerkurs Werkstoffe und Fügen/ Sommerkurs Werkstoffe und Fügen - Magdeburg: Univ.; Mook, Gerhard . - 2007, S. 217-223
Mechanisches Legieren von Molybdän-Basislegierungen für Hochtemperaturanwendungen
Krüger, Manja; Saage, Holger; Franz, S.; Heilmaier, Martin
In: 13. Sommerkurs Werkstoffe und Fügen/ Sommerkurs Werkstoffe und Fügen - Magdeburg: Univ. . - 2007, S. 10-21
Mo-based silicide alloys with balanced oxidation resistance and mechanical properties
Jéhanno, P.; Böning, M.; Kestler, H.; Heilmaier, Martin; Saage, Holger; Krüger, Manja
In: Advances in powder metallurgy & particulate materials - 2007 ; Vol. 2 - Princeton, NJ: Metal Powder Industries Fed.; Engquist, John Vol. 2 . - 2007, S. 8140-8148Kongress: PowderMet (Denver, Colo. : 2007.05.13-16)
Peer-reviewed journal article
Current status and future trends of mo-based silicide alloys for ultra-high temperature applications
Heilmayer, Martin; Saage, Holger; Krüger, Manja; Jehanno, P.; Böning, M.; Kestler, H.; Drawin, S.
In: Current topics on high temperature materials - [S.l.] . - 2007, S. 245-259 - (JSPS report of the 123rd Committee on Heat Resisting Materials and Alloys; 48.2007,3 Special issue)
Current status and future trends of mo-based silicide alloys for ultra-high temperature applications
Heilmayer, Martin; Saage, Holger; Krüger, Manja; Jehanno, P.; Böning, M.; Kestler, H.; Drawin, S.
In: Current topics on high temperature materials - [S.l.] . - 2007, S. 245-259 - (JSPS report of the 123rd Committee on Heat Resisting Materials and Alloys; 48.2007,3 Special issue)
2006
Non-peer-reviewed journal article
Detektion von Defekten in adaptiven CFK-Laminaten mittels bildgebender Laservibrometrie
Krüger, Manja; Mook, Gerhard
In: ZfP-Zeitung . - Berlin, 99, S. 36-41
- National Technical University of Ukraine „Igor Sikorsky Kyiv Polytechnic Institute“
- Karlsruher Institut für Technologie, Institut für Angewandte Materialien
- Volkswagen AG
- Elektro-Thermit GmbH & Co KG, Halle/Saale
- Höfer Metall Technik GmbH & Co. KG, Hettstedt
- Methodisch-Diagnostisches Zentrum Werkstoffprüfung e.V.
- 3D Lab Research and Development, Warschau
- apl. Prof. K. Naumenko, IFME, OVGU
- Bergische Universität Wuppertal
- citim Oerlikon
- DECHEMA Forschungsinstitut Frankfurt
- Deutsches Elektronen-Synchrotron (DESY) Hamburg
- Dr. Kochanek Entwicklungsgesellschaft, Neustadt a.d. Weinstraße
- Experimentelle Orthopädie, OVGU, Prof. Jessica Bertrand
- Forschungszentrum Jülich GmbH
- Fraunhofer-Institut für Lasertechnik, Aachen
- Helmholtz-Zentrum Geesthacht (HZG)
- Helmholtz-Zentrum Hereon, Geesthacht
- Institut für Korrosions- und Schadensanalyse, Magdeburg
- NANOVAL GmbH & Co. KG, Berlin
- OVGU, Dr.-Ing. Georg Hasemann
- Prof. Dr. rer. nat. Michael Scheffler, OVGU
- Prof. H. Stone, Department of Materials Science and Metallurgy of the University of Cambridge, UK
- Prof. N. Jones, Department of Materials Science and Metallurgy of the University of Cambridge, UK
- Prof. Puspendu Sahu, Jadavpur University, Kolkata
- Siemens AG, Berlin
- Technical University Sofia, Faculty of Industrial Technology
- Technische Universität Darmstadt
- Tohoku University
- Tohoku University Sendai (Japan)
- Universität Siegen, Frau Dr.Ing. habil. Bronislava Gorr
- University of Miskolc, Foundry and Metallurgy Institute
- University of Wisconsin-Madison, Prof. John Perepezko
- Zug-, Druck- und Biegeversuche an metallischen und intermetallischen Werkstoffen bei Temperaturen bis 1150°C
- Werkstoffverhalten unter zyklischer Beanspruchung, Rissfortschritt
- Aufklärung von Gefüge-Eigenschafts-Beziehungen von Legierungen
- Mechanisches Legieren von metallischen Pulvern und intermetalischen Verbindungen
- Charakterisierung und Analyse von Metallpulvern
- Analyse der Phasengleichgewichte von metallischen Werkstoffen bei verschiedenen Temperaturen
- Isotherme und zyklische Oxidationsversuche
- Wärmebehandlungen und Sintern unter Schutzgas bzw. im Vakuum
seit 10/2019 | Professorin für Hochtemperaturwerkstoffe an der OVGU Magdeburg |
2017-2019 | Professorin für Werkstoffmechanik an der RWTH Aachen und |
2017 | Habilitation zum Thema „Innovative metallische Hochtemperaturwerkstoffe“ Venia legendi |
2012-2017 | Juniorprofessorin für Spezielle Metallische Werkstoffe an der OVGU |
2010-2011 | Post-Doktorandin am Institut für Werkstoff- und Fügetechnik der OVGU |
2010 | Promotion zum Thema "Pulvermetallurgische Herstellung und Charakterisierung von oxidationsbeständigen Molybdänbasislegierungen für Hochtemperatur-anwendungen" |
2008 | Gastwissenschaftlerin an der Brown University, Providence, USA |
2004-2010 | Wissenschaftliche Mitarbeiterin am IWF der Otto-von-Guericke-Universität Magdeburg |
2004 | Abschluss des Studiums Maschinenbau/Vertiefungsrichtung Werkstofftechnik |
- Betriebsfestigkeit ( Link zur LV im LSF )
- Biomedical Materials - Exercise ( Link zur LV im LSF )
- Biomedical Materials - Lecture ( Link zur LV im LSF )
- Forschungsseminar ( Link zur LV im LSF )
- Werkstoffprozesstechnik ( Link zur LV im LSF )
- Werkstoffprozesstechnik - Übung ( Link zur LV im LSF )