Abstract
Recent work has identified a novel Ni-Cr-Al-Nb alloy capable of generating a γ-γ′-γ″ dual-superlattice microstructure with excellent microstructural stability and tensile strength . In this study, we report on the effect of additions of alloying elements that traditionally partition to the γ matrix. Attention is focussed on their effects upon the microstructure , hardness and lattice misfit of dual-superlattice superalloys. The results obtained from these studies indicate that judicious alloying may further enhance the properties and stability of these dual-superlattice superalloys and that they offer the potential of greatly increased temperature capability compared to other alloys reinforced by γ″ precipitates.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Slama C, Abdellaoui M (2004) Structural characterization of the aged Inconel 718. J Alloy Compd 306:277–284
Collier JP, Wong SH, Phillips JC, Tien JK (1988) The effect of varying Al, Ti, and Nb content on the phase stability of INCONEL 718. Metall Trans A 19:1657–1666
Mignanelli PM, Jones NG, Pickering EJ, Messé OMDM, Rae CMF, Hardy MC, Stone HJ (2017) Gamma-gamma prime-gamma double prime dual-superlattice superalloys. Scr Mater 136:136–140
Mignanelli PM, Jones NG, Hardy MC, Stone HJ (2018) On the time-temperature-transformation behavior of a new dual-superlattice nickel-based superalloy. Metall Mater Trans A 49:699–707
Hardy MC, Stone HJ, Jones NG, Mignanelli PM (2017) US patent application US 2017/0022586A1
Reed RC (2006) The superalloys: fundamentals and applications. Cambridge University Press, Cambridge, UK
MacKay RA, Nathal MV, Pearson DD (1990) Influence of molybdenum on the creep properties of nickel-base superalloy single crystals. Metall Trans A 12:381–388
Fleischmann E, Miller MK, Affeldt E, Glatzel U (2015) Quantitative experimental determination of the solid solution hardening potential of rhenium, tungsten and molybdenum in single-crystal nickel-based superalloys. Acta Mater 87:350–356
Fleischmann E, Konrad C, Preußner J, Völkl R, Affeldt E, Glatzel U (2015) Influence of solid solution hardening on creep properties of single-crystal nickel-based superalloys. Metall Mater Trans A 46:1125–1130
Laurence A, Cormier J, Villechaise P, Billot T, Franchet J-M, Pettinari-Sturmel F, Hantcherli M, Mompiou F, Wessman A (2014) Impact of the solution cooling rate and of thermal aging on the creep properties of the new cast & wrought René 65 Ni-based superalloy. In: 8th international symposium on superalloy 718 and derivatives, p 297–312
Jones NG, Christofidou KA, Mignanelli PM, Minshull JP, Hardy MC, Stone HJ (2014) Influence of elevated Co and Ti levels on polycrystalline powder processed Ni-base superalloy. Mater Sci Technol 30:1853–1861
Gan B, Tin S (2010) Assessment of the effectiveness of transition metal solutes in hardening of Ni solid solutions. Mater Sci Eng A 527:6809–6815
Mishima Y, Ochiai S, Hamao N, Yodogawa M, Suzuki T (1986) Solid solution hardening of nickel–role of transition metal and B-subgroup solutes. Trans Jpn Inst Met 27:656–664
Schirra JJ, Caless RH, Hatala RW (1991)The effect of laves phase on the mechanical properties of wrought and cast + HIP Inconel 718. In: Superalloys 718, 625 and various derivatives. p 375–388
Kirman I (1969) Precipitation in the Fe-Ni-Cr-Nb system. J Iron Steel Inst 207:1612–1618
Yuan Y, Gu Y, Cui C, Osada T, Zhong Z, Tetsui T, Yokokawa T, Harada H (2011) Influence of Co content on stacking fault energy in Ni-Co base disk superalloys. J Mater Res 26:2833–2837
Fedorova T, Rösler J, Gehrmann B, Klöwer J (2014) Invention of a new 718-type Ni-Co superalloy family for high temperature applications at 750 ℃. In: 8th international symposium on superalloy 718 and derivatives. p 587–599
Coelho AA (2008) TOPAS version 4.0, Bruker AXS GmbH, Karlsruhe, Germany
Acknowledgements
The authors would like to acknowledge the EPSRC/Rolls-Royce Strategic Partnership for funding (EP/M005607/1 and EP/H022309/1) and the Diamond Light Source for provision of beam time (EE9270).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Rolls-Royce plc 2017. All rights reserved.
About this paper
Cite this paper
Mignanelli, P.M., Jones, N.G., Hardy, M.C., Stone, H.J. (2018). On the Effect of Alloying Additions to the Ni-Cr-Al-Nb Dual-Superlattice Gamma-Gamma Prime-Gamma Double Prime Superalloys. In: Ott, E., et al. Proceedings of the 9th International Symposium on Superalloy 718 & Derivatives: Energy, Aerospace, and Industrial Applications. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-89480-5_45
Download citation
DOI: https://doi.org/10.1007/978-3-319-89480-5_45
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-89479-9
Online ISBN: 978-3-319-89480-5
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)