Home Technology Beyond Ni-based superalloys: Development of CoRe-based alloys for gas turbine applications at very high temperatures
Article
Licensed
Unlicensed Requires Authentication

Beyond Ni-based superalloys: Development of CoRe-based alloys for gas turbine applications at very high temperatures

Dedicated to Prof. Dr.-Ing. Heinrich Wollenberger on the occasion of his 80th birthday
  • Debashis Mukherji , Joachim Rösler , Pavel Strunz , Ralph Gilles , Gerhard Schumacher and Sebastian Piegert
Published/Copyright: May 18, 2013
Become an author with De Gruyter Brill
Submit Manuscript Author Information
International Journal of Materials Research
From the journal International Journal of Materials Research Volume 102 Issue 9

Abstract

High temperature material development is mainly driven by gas turbine needs. Today, Ni-based superalloys are the dominant material class in the hot section of turbines. Material development will continue to push the maximum service temperature of Ni-superalloys upwards. However, this approach has a fundamental limit and cannot be sustained indefinitely, as the Ni-superalloys are already used very close to their melting point. Within the framework of a DFG Forschergruppe program (FOR 727) – “Beyond Ni-base Superalloys” – CoRe based alloys are being developed at the Technische Universität Braunschweig as a new generation of high temperature materials that can be used at + 100 °C above single crystal Ni-superalloys. Two main strengthening concepts, namely precipitation hardening by MC carbides and composite hardening by Co2Re3-type σ phase are being explored in CoRe alloy development. Selected results of microstructural characterizations, including in-situ measurements by synchrotron and neutron scattering are presented.

Keywords: Co-base alloy; Rhenium; Electron microscopy; Synchrotron scattering; Neutron scattering
∗ Correspondence address, Dr. Debashis Mukherji, Technical University Braunschweig, If W, Langer Kamp 8, D-38106 Braunschweig, Germany, Tel.: +49 531 3913 062, Fax: +49 531 3913 058, E-mail:

References

[1] J.H.Perepezko: Science326 (2009) 1068. PMid:19965415; 10.1126/science.1179327Search in Google Scholar

[2] R.C.Reed: The Superalloys: fundamentals and applications, Cambridge University Press, Cambridge, UK (2006).10.1017/CBO9780511541285Search in Google Scholar

[3] S.Miller, Abstracted from Materials World, vol. 4 (1996) pp. 446–49, “Advanced materials mean advanced engines” www.azom.com/details.asp?ArticleID=90Search in Google Scholar

[4] M.Heilmaier, M.Krüger, H.Saage, J.Rösler, D.Mukherji, U.Glatzel, R.Völkl, R.Hüttner, G.Eggeler, Ch.Somsen, T.Depka, H.-J.Christ, B.Gorr, S.Burk: J. Mater.61 (2009) 61.Search in Google Scholar

[5] B.P.Bewlay, M.R.Jackson, J.-C.Zhao, P.R.Subramanian: Metall. Mater. Trans. A34 (2003) 2043.10.1007/s11661-003-0269-8Search in Google Scholar

[6] J.Rösler, D.Mukherji, T.Baranski: Adv. Eng. Mater.9 (2007) 876.10.1002/adem.200700132Search in Google Scholar

[7] J.Sato, T.Omori, K.Oikawa, I.Ohnuma, R.Kainuma, K.Ishida: Science312 (2006) 90. PMid:16601187; 10.1126/science.1121738Search in Google Scholar

[8] M.Durand-Charre: The microstructure of superalloys, Gordon and Breach Science Publishers, New York, USA (1997).Search in Google Scholar

[9] T.B.Massalski (Ed.): Binary Alloy Phase Diagrams, ASM, Ohio (1986) 793.Search in Google Scholar

[10] E.M.Sokolovskaya, M.L.Tuganbaev, G.I.Stepanova, E.F.Kazakova, I.G.Sokolova: J. Less-Common Metals124 (1986) L5.10.1016/0022-5088(86)90502-3Search in Google Scholar

[11] P.Shi: TCC Thermo-Calc Software User's Guide Version S, Thermo-Calc Software AB, Stockholm, Sweden (2010).Search in Google Scholar

[12] N.Saunders: Ni-Data (vers. 7) – TTNi7, Thermotech Ltd., Surrey Technology Centre, Surrey, U.K. (2005).Search in Google Scholar

[13] D.Mukherji, J.Rösler, T.Fricke, S.Piegert, F.Schmitz, in: J.Lecomte, Q.Contrepois, T.Beck, B.Kuhn (Eds.), Materials for Advanced Power Engineering 2010, Energy & Environment, Vol. 94, Jülich Forschingszentrum, ISBN 978-3-89336-685-9.Search in Google Scholar

[14] J.Rösler, D.Mukherji, M.Heilmaier, M.Krüger: Hochwarmfeste Co-Re-B-Legierung: Legierung für mechanisch höchst belastete Bauteile, German Patent Application No. 102009037622.4 dtd. 14. August 2009.Search in Google Scholar

[15] M.Klauke, D.Mukherji, B.Gorr, H.-J.Christ, J.Rösler: Int. J. Mat. Res.100 (2009) 104.10.3139/146.101792Search in Google Scholar

[16] B.Gorr, V.Trindade, S.Burk, H.-J.Christ, M.Klauke, D.Mukherji, J.Rösler: Oxid. Metal71 (2009) 157.10.1007/s11085-008-9133-ySearch in Google Scholar

[17] D.Mukherji, M.Klauke, P.Strunz, I.Zizak, G.Schumacher, A.Wiedenmann, J.Rösler: Int. J. Mat. Res.101 (2010) 340.10.3139/146.110282Search in Google Scholar

[18] D.Mukherji, P.Strunz, R.Gilles, M.Hofmann, F.Schmitz, J.Rösler: Mater. Lett.64 (2010) 2608.10.1016/j.matlet.2010.08.066Search in Google Scholar

Received: 2010-11-29
Accepted: 2011-7-12
Published Online: 2013-05-18
Published in Print: 2011-09-01

© 2011, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Prof. Dr.-Ing. Heinrich Wollenberger — 80 years
  5. Original Contributions
  6. Atom probe tomography: from physical metallurgy towards microelectronics
  7. Accumulation of radiation damage and disordering in MgAl2O4 under swift heavy ion irradiation
  8. TEM study of irradiation induced copper precipitation in boron alloyed EUROFER97 steel
  9. Order – disorder transformation in Ni – V alloys under electron irradiation
  10. Materials issues of the SINQ high-power spallation target
  11. The origin and development of the P{011}<111> orientation during recrystallization of particle-containing alloys
  12. Coarsening kinetics of Cu-rich precipitates in a concentrated multicomponent Fe–Cu based steel
  13. Beyond Ni-based superalloys: Development of CoRe-based alloys for gas turbine applications at very high temperatures
  14. The effect of heat treatments on the microstructure, texture and mechanical properties of the extruded magnesium alloy ME21
  15. Analysing SANS data to determine magnetisation reversal processes in composite perpendicular magnetic recording media using TEM images
  16. Dislocationless sliding in a polycluster glass
  17. Evolution of transformation plasticity during bainitic transformation
  18. Surface tension and viscosity of NiAl catalytic precursor alloys from microgravity experiments
  19. Synthesis of carbon nanotubes by fine Ni particles in Ni3Al foam
  20. Fabrication of dielectric thin films by sputtering deposition at different pressures with (Ba0.3Sr0.7)(Zn1/3Nb2/3)O3 ceramic as target
  21. DGM News
  22. DGM News
https://doi.org/10.3139/146.110563
Keywords for this article
Co-base alloy; Rhenium; Electron microscopy; Synchrotron scattering; Neutron scattering

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Prof. Dr.-Ing. Heinrich Wollenberger — 80 years
  5. Original Contributions
  6. Atom probe tomography: from physical metallurgy towards microelectronics
  7. Accumulation of radiation damage and disordering in MgAl2O4 under swift heavy ion irradiation
  8. TEM study of irradiation induced copper precipitation in boron alloyed EUROFER97 steel
  9. Order – disorder transformation in Ni – V alloys under electron irradiation
  10. Materials issues of the SINQ high-power spallation target
  11. The origin and development of the P{011}<111> orientation during recrystallization of particle-containing alloys
  12. Coarsening kinetics of Cu-rich precipitates in a concentrated multicomponent Fe–Cu based steel
  13. Beyond Ni-based superalloys: Development of CoRe-based alloys for gas turbine applications at very high temperatures
  14. The effect of heat treatments on the microstructure, texture and mechanical properties of the extruded magnesium alloy ME21
  15. Analysing SANS data to determine magnetisation reversal processes in composite perpendicular magnetic recording media using TEM images
  16. Dislocationless sliding in a polycluster glass
  17. Evolution of transformation plasticity during bainitic transformation
  18. Surface tension and viscosity of NiAl catalytic precursor alloys from microgravity experiments
  19. Synthesis of carbon nanotubes by fine Ni particles in Ni3Al foam
  20. Fabrication of dielectric thin films by sputtering deposition at different pressures with (Ba0.3Sr0.7)(Zn1/3Nb2/3)O3 ceramic as target
  21. DGM News
  22. DGM News
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2026 De Gruyter Brill
Downloaded on 17.1.2026 from https://www.degruyterbrill.com/document/doi/10.3139/146.110563/html
Scroll to top button