• Skip navigation
  • Skip to navigation
  • Skip to the bottom
Simulate organization breadcrumb open Simulate organization breadcrumb close
Lehrstuhllogo
  • FAUTo the central FAU website
  1. Friedrich-Alexander-Universität
  2. Faculty of Engineering
  3. Department Materials Science and Engineering
  • English
  • Deutsch
  • My Campus
  • UnivIS
  1. Friedrich-Alexander-Universität
  2. Faculty of Engineering
  3. Department Materials Science and Engineering

Lehrstuhllogo

Navigation Navigation close
  • Chair
    • Team
    • Career
    • Contact
    Portal Chair
  • Research
    • Additive Manufacturing
    • Modelling and Simulation
    • Casting Technology
    • Ultra-hard Coatings
    • High Performance Alloys
    • Equipment
    • Publications
    • Dissertations
    Portal Research
  • Teaching
    • Lectures
    • Theses
    • Scripts and Instructions
    Portal Teaching
  1. Home
  2. Research
  3. High Performance Alloys

High Performance Alloys

In page navigation: Research
  • Additive Manufacturing
    • Alloy development for additiv manufacturing
    • Cellular mechanical metamaterials
    • Development of process strategies
    • Expansion of the capability of SEBM by improved electron beam technology
    • Selectiv electron beam melting of special alloys
  • Modelling and Simulation
    • Simulation of additive manufacturing
    • Multi-Criteria Optimization
    • Foam simulation
  • Casting Technology
    • Investment casting and high temperature alloys
    • High pressure die casting and lightweight materials
      • Alloy development for high pressure die casting
      • In-situ reinforcement of Aluminium casting alloys
      • Diamond coating of molds and tools
      • Integral foam molding
      • Integration of piezoceramic modules
  • Ultra-hard Coatings
    • Process technology
      • Development and Up-Scaling of the hot filament process for diamond CVD
      • Alloying of metals and metal compounds in diamond CVD facilities
      • Electrochemical reactors with diamond electrodes for aqueous electrolytes
    • CVD diamond coatings of metals and ceramics
      • CVD diamond on Steel
      • CVD diamond on hard metals
      • CVD diamond on ceramics
      • Titanium- and Tantalum-based CVD coatings
    • CVD diamond foils
      • CVD diamond foils for mechanical applications
      • CVD diamond foils for thermoelectric applications
    • Test and characterisation of coated surfaces and components
      • Piston rings
      • Diamond electrodes
      • Steel tools
  • High Performance Alloys
    • Combinatorial alloy development by LMD
    • Development of high performance alloys
    • Using X-Rays and Neutrons for Materials Characterization
  • Equipment
  • Publications
  • Dissertations

High Performance Alloys

Research Field High Performance Alloys

The term High Performance Alloys encompasses a wide array of material systems. It usually denotes alloys that can withstand extreme environments, e.g. high temperatures or corrosive atmospheres, show an exceptional combination of strength and ductility or exhibit unique properties such as the shape-memory effect. The aim of the High Performance Alloys Group is to optimize existing materials and discover new alloys through systematic exploration of the relevant multi-dimensional alloying spaces.

Team

Mitarbeiterfoto Christopher Zenk
Christopher Zenk, Dr.-Ing.
Mitarbeiterfoto Benjamin Wahlmann
Benjamin Wahlmann, M.Sc.
Mitarbeiterfoto Tobias Gaag
Tobias Gaag, M.Sc.
Mitarbeiterfoto Florian Galgon
Florian Galgon, M.Sc.
Mitarbeiterfoto Luis Morales
Luis Morales, M.Sc.
Mitarbeiterfoto Nick Semjatov
Nick Semjatov, M.Sc.
Mitarbeiterfoto Elisabeth Kammermeier
Elisabeth Kammermeier, M.Sc.
Mitarbeiterfoto Julius Weidinger
Julius Weidinger, M.Sc.

Fields of Activity

Development of high performance alloys

Combinatorial alloy development by LMD

Using X-Rays and Neutrons for Materials Characterization

Publications

Journal Articles

  • Feng L., Shi R., Zenk C., Mills MJ., Wang Y.:
    Phase field modeling of shearing processes of a dual-lobed γ″|γ′|γ″ coprecipitate
    In: Acta Materialia 246 (2023), Article No.: 118693
    ISSN: 1359-6454
    DOI: 10.1016/j.actamat.2023.118693
  • Morales LA., Bezold A., Förner A., Holz H., Merle B., Neumeier S., Körner C., Zenk C.:
    Influence of Cu Addition and Microstructural Configuration on the Creep Resistance and Mechanical Properties of an Fe-Based alpha/alpha '/alpha '' Superalloy
    In: Advanced Engineering Materials (2023)
    ISSN: 1438-1656
    DOI: 10.1002/adem.202201652
  • Wahlmann B., Bandorf J., Volz N., Förner A., Pröbstle J., Multerer K., Göken M., Markl M., Neumeier S., Körner C.:
    Numerical Design of CoNi-Base Superalloys With Improved Casting Structure
    In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2022)
    ISSN: 1073-5623
    DOI: 10.1007/s11661-022-06870-4
  • Luo N., Huber F., Ciftci N., Wahl L., Bezold A., Neumeier S., Uhlenwinkel V., Travitzky N., Schmidt M., Zenk C., Körner C.:
    Laser powder bed fusion of FeCoBSiNb-Cu bulk metallic glass composites: Processing, microstructure and mechanical properties
    In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 849 (2022), Article No.: 143405
    ISSN: 0921-5093
    DOI: 10.1016/j.msea.2022.143405
  • Morales Victoria L., Luo N., Li K., Zenk C., Körner C.:
    On stabilizing an α/α′/α″ microstructure in ferritic superalloys
    In: Journal of Alloys and Compounds 911 (2022), Article No.: 164996
    ISSN: 0925-8388
    DOI: 10.1016/j.jallcom.2022.164996
  • Bezold A., Volz N., Lenz M., Karpstein N., Zenk C., Spiecker E., Göken M., Neumeier S.:
    Quantification of the temperature-dependent evolution of defect structures in a CoNi-base superalloy
    In: Acta Materialia 227 (2022), Article No.: 117702
    ISSN: 1359-6454
    DOI: 10.1016/j.actamat.2022.117702
  • Luo N., Galgon F., Krauß S., Morales LA., Merle B., Zenk C., Körner C.:
    Microstructural evolution and mechanical properties in Zr–Cu–Al–Nb bulk metallic glass composites prepared by laser metal deposition
    In: Intermetallics 140 (2022), Article No.: 107393
    ISSN: 0966-9795
    DOI: 10.1016/j.intermet.2021.107393
  • Galgon F., Melzer D., Zenk C., Dzugan J., Körner C.:
    Miniature mechanical testing of LMD-fabricated compositionally & microstructurally graded γ titanium aluminides
    In: Journal of Materials Research (2022)
    ISSN: 0884-2914
    DOI: 10.1557/s43578-022-00801-0
  • Gaag T., Ritter N., Peters A., Volz N., Gruber D., Neumeier S., Zenk C., Körner C.:
    Improving the Effectiveness of the Solid-Solution-Strengthening Elements Mo, Re, Ru and W in Single-Crystalline Nickel-Based Superalloys
    In: Metals 11 (2021), Article No.: 1707
    ISSN: 2075-4701
    DOI: 10.3390/met11111707
  • Bezold A., Volz N., Lenz M., Zenk C., Spiecker E., Mills MJ., Göken M., Neumeier S.:
    Yielding behavior of a single-crystalline γ'-strengthened Co-Ti-Cr superalloy
    In: Scripta Materialia 200 (2021), p. 113928
    ISSN: 1359-6462
    DOI: 10.1016/j.scriptamat.2021.113928
  • Horst OM., Schmitz D., Schreuer J., Git P., Wang H., Körner C., Eggeler G.:
    Thermoelastic properties and γ’-solvus temperatures of single-crystal Ni-base superalloys
    In: Journal of Materials Science (2021)
    ISSN: 0022-2461
    DOI: 10.1007/s10853-020-05628-w
  • Zenk C., Volz N., Zenk C., Felfer P., Neumeier S.:
    Impact of the Co/Ni-Ratio on Microstructure, Thermophysical Properties and Creep Performance of Multi-Component γ′-Strengthened Superalloys
    In: Crystals 10 (2020), p. 1058
    ISSN: 2073-4352
    DOI: 10.3390/cryst10111058
  • Luo N., Scheitler CJ., Ciftci N., Galgon F., Fu Z., Uhlenwinkel V., Schmidt M., Körner C.:
    Preparation of Fe-Co-B-Si-Nb bulk metallic glasses by laser powder bed fusion: Microstructure and properties
    In: Materials Characterization 162 (2020), Article No.: 110206
    ISSN: 1044-5803
    DOI: 10.1016/j.matchar.2020.110206
  • Heßelmann C., Wolf T., Galgon F., Körner C., Albert J., Wasserscheid P.:
    Additively manufactured Raney-type Copper catalyst for methanol synthesis
    In: Catalysis: Science and Technology 10 (2020), p. 164-168
    ISSN: 2044-4753
    DOI: 10.1039/C9CY01657K
  • Wahlmann B., Galgon F., Stark A., Gayer S., Schell N., Staron P., Körner C.:
    Growth and coarsening kinetics of gamma prime precipitates in CMSX-4 under simulated additive manufacturing conditions
    In: Acta Materialia (2019)
    ISSN: 1359-6454
    DOI: 10.1016/j.actamat.2019.08.049
  • Müller A., Sprenger M., Ritter N., Rettig R., Markl M., Körner C., Singer R.:
    MultOpt++: a fast regression-based model for the constraint violation fraction due to composition uncertainties
    In: Modelling and Simulation in Materials Science and Engineering 27 (2019)
    ISSN: 0965-0393
    DOI: 10.1088/1361-651X/aaf01e
  • Müller A., Roslyakova I., Sprenger M., Git P., Rettig R., Markl M., Körner C., Singer R.:
    MultOpt++: a fast regression-based model for the development of compositions with high robustness against scatter of element concentrations
    In: Modelling and Simulation in Materials Science and Engineering 27 (2019)
    ISSN: 0965-0393
    DOI: 10.1088/1361-651X/aaf0b8
  • Ritter N., Sowa R., Schauer JC., Gruber D., Göhler T., Rettig R., Körner C., Singer R.:
    Effects of Solid Solution Strengthening Elements Mo, Re, Ru, and W on Transition Temperatures in Nickel-Based Superalloys with High γ′-Volume Fraction: Comparison of Experiment and CALPHAD Calculations
    In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2018)
    ISSN: 1073-5623
    DOI: 10.1007/s11661-018-4730-0
  • Ritter N., Schesler E., Müller A., Rettig R., Körner C., Singer R.:
    On the Influence of Ta and Ti on Heat-Treatability and γ/γ'-Partitioning of High W Containing Re-Free Nickel-Based Superalloys
    In: Advanced Engineering Materials (2017)
    ISSN: 1438-1656
    DOI: 10.1002/adem.201700150
  • Pröbstle M., Neumeier S., Feldner P., Rettig R., Helmer H., Singer R., Göken M.:
    Improved creep strength of nickel-base superalloys by optimized γ/γ′ partitioning behavior of solid solution strengthening elements
    In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 676 (2016), p. 411-420
    ISSN: 0921-5093
    DOI: 10.1016/j.msea.2016.08.121
  • Neumeier S., Rehman HU., Neuner J., Zenk C., Michel S., Schuwalow S., Rogal J., Drautz R., Göken M.:
    Diffusion of solutes in fcc Cobalt investigated by diffusion couples and first principles kinetic Monte Carlo
    In: Acta Materialia 106 (2016), p. 304-312
    ISSN: 1359-6454
    DOI: 10.1016/j.actamat.2016.01.028
  • Matuszewski K., Rettig R., Matysiak H., Peng Z., Povstugar I., Choi P., Müller J., Raabe D., Spiecker E., Kurzydlowski KJ., Singer R.:
    Effect of ruthenium on the precipitation of topologically close packed phases in Ni-based superalloys of 3rd and 4th generation
    In: Acta Materialia 95 (2015), p. 274-283
    ISSN: 1359-6454
    DOI: 10.1016/j.actamat.2015.05.033
  • Peng Z., Povstugar I., Matuszewski K., Rettig R., Singer R., Kostka A., Choi PP., Raabe D.:
    Effects of Ru on elemental partitioning and precipitation of topologically close-packed phases in Ni-based superalloys
    In: Scripta Materialia 101 (2015), p. 44-47
    ISSN: 1359-6462
    DOI: 10.1016/j.scriptamat.2015.01.014
  • Rettig R., Ritter N., Müller F., Franke M., Singer R.:
    Optimization of the Homogenization Heat Treatment of Nickel-Based Superalloys Based on Phase-Field Simulations: Numerical Methods and Experimental Validation
    In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 46 (2015), p. 5842-5855
    ISSN: 1073-5623
    DOI: 10.1007/s11661-015-3130-y
  • Rettig R., Ritter N., Helmer H., Neumeier S., Singer R.:
    Single-crystal nickel-based superalloys developed by numerical multi-criteria optimization techniques: Design based on thermodynamic calculations and experimental validation
    In: Modelling and Simulation in Materials Science and Engineering 23 (2015), Article No.: 035004
    ISSN: 1361-651X
    DOI: 10.1088/0965-0393/23/3/035004
  • Matuszewski K., Müller A., Ritter N., Rettig R., Kurzydłowski K., Singer R.:
    On the Thermodynamics and Kinetics of TCP Phase Precipitation in Re- and Ru- Containing Ni-base Superalloys
    In: Advanced Engineering Materials 17 (2015), p. 1127-1133
    ISSN: 1438-1656
    DOI: 10.1002/adem.201500173
  • Rettig R., Singer R.:
    Fast interpolation algorithm for the calculation of thermodynamic property maps of microstructures
    In: Modelling and Simulation in Materials Science and Engineering 22 (2014), p. 1-19
    ISSN: 1361-651X
    DOI: 10.1088/0965-0393/22/8/085002
  • Matuszewski K., Rettig R., Rasiński M., Kurzydlowski KJ., Singer R.:
    The Three-dimensional morphology of topologically close packed phases in a high rhenium containing nickel based superalloy
    In: Advanced Engineering Materials 16 (2014), p. 171-175
    ISSN: 1438-1656
    DOI: 10.1002/adem.201300198
  • Heckl A., Cenanovic S., Göken M., Singer R.:
    Discontinuous precipitation and phase stability in Re- and Ru-containing nickel-base superalloys
    In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 43 (2012), p. 10-19
    ISSN: 1073-5623
    DOI: 10.1007/s11661-011-0833-6
  • Rettig R., Singer R.:
    Numerical modelling of precipitation of topologically close-packed phases in nickel-base superalloys
    In: Acta Materialia 59 (2011), p. 317-327
    ISSN: 1359-6454
    DOI: 10.1016/j.actamat.2010.09.035
  • Heckl A., Rettig R., Singer R.:
    Creep rupture strength of Re and Ru containing experimental nickel-base superalloys
    In: Advanced Materials Research 278 (2011), p. 339-344
    ISSN: 1022-6680
    DOI: 10.4028/www.scientific.net/AMR.278.339
  • Heckl A., Neumeier S., Cenanovic S., Göken M., Singer R.:
    Reasons for the enhanced phase stability of Ru-containing nickel-based superalloys
    In: Acta Materialia 59 (2011), p. 6563-6573
    ISSN: 1359-6454
    DOI: 10.1016/j.actamat.2011.07.002
  • Heckl A., Neumeier S., Göken M., Singer R.:
    The effect of Re and Ru on γ/γ′ microstructure, γ-solid solution strengthening and creep strength in nickel-base superalloys
    In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 528 (2011), p. 3435-3444
    ISSN: 0921-5093
    DOI: 10.1016/j.msea.2011.01.023
  • Rettig R., Heckl A., Singer R.:
    Modeling of precipitation kinetics of TCP-phases in single crystal nickel-base superalloys
    In: Advanced Materials Research 278 (2011), p. 180-185
    ISSN: 1022-6680
    DOI: 10.4028/www.scientific.net/AMR.278.180
  • Heckl A., Rettig R., Cenanovic S., Göken M., Singer R.:
    Investigation of the final stages of solidification and eutectic phase formation in Re and Ru containing nickel-base superalloys
    In: Journal of Crystal Growth 312 (2010), p. 2137-2144
    ISSN: 0022-0248
    DOI: 10.1016/j.jcrysgro.2010.03.041
  • Heckl A., Rettig R., Singer R.:
    Solidification Characteristics and Segregation Behavior of Nickel-Base Superalloys in Dependence on Different Rhenium and Ruthenium Contents
    In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 41A (2010), p. 202-211
    ISSN: 1073-5623
    DOI: 10.1007/s11661-009-0076-y
  • Rettig R., Heckl A., Neumeier S., Pyczak F., Göken M., Singer R.:
    Verification of a commercial CALPHAD database for Re and Ru containing nickel-base superalloys
    In: Defect and Diffusion Forum 289-292 (2009), p. 101-108
    ISSN: 1012-0386
    DOI: 10.4028/www.scientific.net/DDF.289-292.101
  • Volek A., Singer R., Bürgel R., Grossmann J., Wang Y.:
    Influence of topologically closed packed phase formation on creep rupture life of directionally solidified nickel-base superalloys
    In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 37 (2006), p. 405-410
    ISSN: 1073-5623
    DOI: 10.1007/s11661-006-0011-4
  • Volek A., Pyczak F., Singer R., Mughrabi H.:
    Partitioning of Re between γ and γ′ phase in nickel-base superalloys
    In: Scripta Materialia 52 (2005), p. 141-145
    ISSN: 1359-6462
    DOI: 10.1016/j.scriptamat.2004.09.013

Conference Contributions

  • Horst OM., Ibrahimkhel S., Streitberger J., Wochmjakow N., Git P., Scholz F., Thome P., Singer R., Körner C., Frenzel J.,  Eggeler G.:
    On the Influence of Alloy Composition on Creep Behavior of Ni-Based Single-Crystal Superalloys (SXs)
    14th International Symposium on Superalloys, Superalloys 2021 (Seven Springs, PA, 12. September 2021 - 16. September 2021)
    In: Sammy Tin, Mark Hardy, Justin Clews, Jonathan Cormier, Qiang Feng, John Marcin, Chris O'Brien, Akane Suzuki (ed.): Minerals, Metals and Materials Series 2020
    DOI: 10.1007/978-3-030-51834-9_6
  • Rettig R., Matuszewski K., Müller A., Helmer H., Ritter N., Singer R.:
    Development of a low-density rhenium-free single crystal nickel-based superalloy by application of numerical multi-criteria optimization using thermodynamic calculations
    13th International Symposium on Superalloys, SUPERALLOYS 2016 (Seven Springs, 11. September 2016 - 15. September 2016)
    In: M. Hardy, E. Huron, U. Glatzel, B. Griffin, B. Lewis, C. Rae, V. Seetharaman, S. Tin (ed.): Superalloys 2016: Proceedings of the 13th Intenational Symposium of Superalloys 2016
    DOI: 10.1002/9781119075646.ch4
  • Goehler T., Schwalbe C., Svoboda J., Affeldt E., Singer R.:
    Discussing the effect of gamma prime coarsening on high temperature low stress creep deformation with respect to the role of refractory elements
    13th International Symposium on Superalloys, SUPERALLOYS 2016 (Seven Springs, 11. September 2016 - 15. September 2016)
    In: M. Hardy, E. Huron, U. Glatzel, B. Griffin, B. Lewis, C. Rae, V. Seetharaman, S. Tin (ed.): Superalloys 2016: Proceedings of the 13th Intenational Symposium of Superalloys 2016
    DOI: 10.1002/9781119075646.ch70
  • Matuszewski K., Rettig R., Singer R.:
    The effect of Ru on precipitation of topologically close packed phases in Re-containing Ni base superalloys: Quantitative FIB-SEM investigation and 3D image modeling
    2nd European Symposium on Superalloys and Their Applications, EUROSUPERALLOYS 2014 (Giens)
    DOI: 10.1051/matecconf/20141409001
  • Rettig R., Singer R.:
    Influence of Ruthenium on topologically closed packed phase precipitation in single-crystal Ni-based superalloys: numerical experiments and validation
    112th International Symposium on Superalloys, SUPERALLOYS 2012 (Seven Springs, 9. September 2012 - 13. September 2012)
    In: E. S. Huron, R. C. Reed, M. C. Hardy, M. J. Mills, R. E. Montero, P. Dolabella Portella, J. Telesman (ed.): Superalloys 2012: Proceedings of the 12th Intenational Symposium of Superalloys 2012
  • Bürgel R., Grossmann J., Lüsebrink O., Mughrabi H., Pyczak F., Singer R., Volek A.:
    Development of a new alloy for directional solidification of large industrial gas turbine blades
    SUPERALLOYS 2004 - Tenth International Symposium on Superalloys (Champion, PA)
  • Volek A., Singer R.:
    Influence of solidification conditions on TCP phase formation, casting porosity and high temperature mechanical properties in a Re-containing nickel-base superalloy with columnar grain structure
    10th International Symposium on Superalloys, SUPERALLOYS 2004 (Seven Springs, 19. September 2004 - 23. September 2004)
    In: K. Green, H. Harada, T.E. Howson, T.M. Pollock, R.C. Reed, J.J. Schirra, S. Walston (ed.): Superalloys 2004: Proceedings of the 10th Intenational Symposium of Superalloys 2004
    DOI: 10.7449/2004/Superalloys_2004_713_718
  • Pyczak F., Biermann H., Mughrabi H., Volek A., Singer R.:
    CBED-Measurement of Residual Internal Strains in the Neighbourhood of TCP-Phases in Ni-Base Superalloys
    9th International Symposium on Superalloys, SUPERALLOYS 2000 (Seven Springs, 17. September 2000 - 21. September 2000)
    In: K. Green, T. M. Pollock, R. Kissinger, R.R. Bowman, K.A. Green, M. McLean, S. Olson, J.J. Schirra (ed.): Superalloys 2000: Proceedings of the 9th Intenational Symposium of Superalloys 2000

Thesis

  • Luo N.:
    Laser-based additive manufacturing of bulk metallic glass-forming alloys: Processing, microstructure and properties (Dissertation, 2022)
  • Ritter N.:
    Bedeutung der Mischkristallhärter für die Kriechbeständigkeit Re-freier Nickelbasis-Einkristall-Legierungen (Dissertation, 2021)
  • Matuszewski K.:
    Precepetation of Topologically Close Packed Phases in Ni-base Superalloys - the Effect of Re and Ru (Dissertation, 2016)
  • Göhler T.:
    Designkriterien für rheniumreduzierte Nickelbasis-Einkristalllegierungen: Identifikation und rechnergestützte Umsetzung (Dissertation, 2016)
  • Franke M.:
    Auswirkungen der Legierungszusammensetzung auf die Morphologie und die Festigkeit des Dendritennetzwerkes bei der gerichteten Erstarrung von Nickelbasis-Superlegierungen (Dissertation, 2013)
  • Heckl A.:
    Auswirkungen von Rhenium und Ruthenium auf die Mikrostruktur und Hochtemperaturfestigkeit von Nickel-Basis Superlegierungen unter Berücksichtigung der Phasenstabilität (Dissertation, 2011)
  • Rettig R.:
    Mathematische Modellierung der Ausscheidung von Sprödphasen in komplexen rutheniumhaltigen Nickelbasis-Superlegierungen (Dissertation, 2010)
  • Volek A.:
    Erstarrungsmikrostruktur und Hochtemperatureigenschaften rheniumhaltiger, stängelkristalliner Nickel-Basis-Superlegierungen (Dissertation, 2002)

Projects

SFB/TRR 103 (C07): Multi-criteria calculation of optimum compositions for single crystal superalloys

A new numerical tool will be explored that supports the experimental alloy developer in defining new compositions with potential for high strength. Starting with a composition space that is defined by the developer based on his metallurgical experience and his design goals, the numerical tool will propose the most promising compositions. The research program will on the one hand address open questions regarding the mathematical optimization in this application and on the other hand new models for predicting the relevant material properties.

→ More information

Combinatorial Material Development of Iron Aluminides for Additive Manufacturing

It is worked on novel hierarchical FeAl-based precipitate-strengthened alloys for high-temperature structural applications. Some of them show very unique hierarchical microstructure with L21 precipitates within B2 precipitates within a bcc matrix. This exciting group of materials resembles a promising low-cost alternative to Ni-superalloys and Ti-based alloys under specific conditions. A potential application for these alloys ultra-supercritical power plants with service temperatures…

→ More information

Cu-based shape memory alloys and bulk-metallic glasses

In this project two different but equally exciting material systems are being investigated:

Development of high temperature Cu-Al-Ni-X shape memory alloys (SMAs)

Compared to commercially available Ni-Ti SMAs, Cu-Al-Ni-X SMAs possess a slightly higher transformation temperature above 100 °C and exhibit a lower production cost. However, poor mechanical properties caused by their typically coarse grain size and anisotropy severely limit their worldwide application. Therefore, …

→ More information

MatSim: High temperature single crystal and materials simulation

→ More information

GRK 1229/2 MM3: Kinetics of brittle phase formation in single crystal Ni-base superalloys

→ More information

GRK 1229/1 MM3: Thermodynamic modeling of the phase formation in Nickel base superalloys of the 4th generation

→ More information

GRK 1229/1 MW1: Solidification behavior, phase stability and hardening mechanisms in single crystal Nickel base superalloys of the 4th generation

→ More information

Pre-development of a Rhenium-free single crystal alloy

→ More information

KW21-II: Increased efficiency and safety of gas turbines by better castable materials

→ More information




  • Imprint
  • Privacy
  • Accessibility
Up