Abstract
Conventional casting allows producing components with complex geometries and coarse grains favorable for good creep-resistance at high temperatures. Their weak points are generally their intergrains and interdendritics boundaries. Introducing carbon and MC-former metals can achieve the development of an intergranular and interdendritic network of eutectic carbides bringing the double benefit of a script-like geometry for the interdendritics cohesion, and of a good morphological and volume fraction stability on long times at high temperature. In this work two kinds of superalloys were obtained by high frequency induction foundry under inert atmosphere. The first ones are nickel-based superalloys reinforced by ZrC carbides. The second ones are also nickel-based alloys but strengthened by (Ta, Hf)C carbides. All were subjected to 3-points bending creep tests at 1100 °C for a maximal induced tensile stress equal to 20 MPa. They demonstrated high resistance despite the test temperature particularly high for superalloys produced by classical foundry.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Bradley EF (1988) Superalloys: a technical guide. ASM International, Metals Park (USA)
Donachie MS, Donachie SJ (2002) Superalloys: a technical guide, 2nd edn. ASM International, Materials Park (USA)
Durand-Charre M (1997) The microstructure of superalloys. CRC Press, Boca-Raton (USA)
Berthod P (2009) High temperature properties of several chromium-containing Co-based alloys reinforced by different types of MC carbides (M = Ta, Nb, Hf and/or Zr). J Alloy Compd 481:746–754
Kofstad P (1988) High temperature corrosion. Elsevier Applied Science, London (UK)
Berthod P, Conrath E (2014) Mechanical and chemical properties at high temperature of {M–25Cr}-based alloys containing hafnium carbides (M = Co, Ni or Fe): creep behavior and oxidation at 1200 °C. J Mater Sci Technol Res 1:7–14
Berthod P, Aranda L, Vébert C, Michon S (2004) Experimental and thermodynamic study of the high temperature microstructure of tantalum containing nickel-based alloys. Calphad 28:159–166
Berthod P, Kretz E, Allègre F, Ritouet M, Schweitzer T, Aranda L (2017) Oxidation and creep properties at 1200 °C of cast quaternary Ni–Cr–C–Ti alloys. Mater Sci Eng A 699:145–155
Ritouet M, Berthod P (2018) Effect of NbC Addition on the high-temperature oxidation resistance of Co- and Ni-based chromium-rich alloys. Oxid Met 89:339–355
Berthod P, Conrath E (2016) Creep and oxidation kinetics at 1100 °C of nickel-base alloys reinforced by hafnium carbides. Mater Des 104:27–36
Peultier J, Kuhn V, Berthod P, Ritouet-Léglise M, Schweitzer T, Aranda L (2017) High temperature characteristics of zirconium carbides-strengthened cobalt-based and iron-based alloys specified using different thermal analysis methods. https://hal.archives-ouvertes.fr/hal-03229273. Accessed 9 Sept 2022
Acknowledgements
The authors wish to thank Lionel Aranda for his great help for performing the creep tests.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Berthod, P., Tlili, S., Kane, D.A. (2023). Creep Behavior at Elevated Temperatures of Several Polycrystalline Ni-based Superalloys Strengthened by MC-Carbides. In: TMS 2023 152nd Annual Meeting & Exhibition Supplemental Proceedings. TMS 2023. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-22524-6_101
Download citation
DOI: https://doi.org/10.1007/978-3-031-22524-6_101
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-22523-9
Online ISBN: 978-3-031-22524-6
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)