Dislocation networks in gamma/gamma’-microstructures formed during selective laser melting of a Ni-base superalloy

Autor: A. Dlouhy, C. M. F. Rae, C. Heinze, C. Schwalbe, Gunther Eggeler, L. Heep

Publikováno v: Scripta Materialia. 190:121-125

A dislocation network which formed during selective laser melting (SLM) of a Ni-base superalloy was analyzed using scanning transmission electron microscopy (STEM). This network traverses an ordered Gamma'-phase domain, in between two adjacent Gamma-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fc54b4590145ba62c5612354a8081b3
https://doi.org/10.1016/j.scriptamat.2020.08.019

Elementary deformation processes in high temperature plasticity of Ni- and Co-base single-crystal superalloys with γ/γ′ microstructures

Autor: J. L. Strudel, C. M. F. Rae, Gunther Eggeler

In the present chapter, we review elementary dislocation processes which govern high-temperature strength of Ni- and Co-base single crystals, focusing on yield and creep in different stress/temperature regimes. We show how our understanding has evolv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6bd3fb5f29c11bddba30c6a742a12ba7
https://doi.org/10.1016/b978-0-12-819357-0.00013-5

Developing Alloy Compositions for Future High Temperature Disk Rotors

Autor: C. M. F. Rae, Suyang Yu, C. Papadaki, Paul Bowen, R. C. Buckingham, Mark Hardy, P. M. Mignanelli, Alexander Evans, C. Argyrakis, S. C. H. Llewelyn, Howard J. Stone, C. Jackson, Hangyue Li, Alison Wilson, Hiroto Kitaguchi, Nick Jones, Ed Pickering, K. Severs, D.J. Child, KA Christofidou

Publikováno v: Superalloys 2020 ISBN: 9783030518332

Two new alloy compositions for possible disk rotor applications have been examined. Both were intended to have higher \( \gamma ^{{\prime }} \) content than the existing alloy, RR1000, and be produced using powder metallurgy and isothermal forging to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b4db02d3edf11fc9588920a44c104be
https://doi.org/10.1007/978-3-030-51834-9_2

Investigating the Dislocation-Driven Micro-mechanical Response Under Non-isothermal Creep Conditions in Single-Crystal Superalloys

Autor: C.N. Jones, Enrique I. Galindo-Nava, C. Schwalbe, C. M. F. Rae, Jonathan Cormier

Publikováno v: Metallurgical and Materials Transactions A
Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2018, 49 (9), pp.3988-4002. ⟨10.1007/s11661-018-4764-3⟩

The creep responses of the superalloy CMSX-4 under thermal cycling conditions (900 °C to 1050 °C) and constant load ( $$ \sigma_{0} = 200 MPa $$ σ 0 = 200 M P a ) were analyzed using TEM dislocation analysis and compared to the modeled evolution o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5752302dc5e93e7bb624c4fcc331221
https://hal.archives-ouvertes.fr/hal-02291749

On the Effect of Nb on the Microstructure and Properties of Next Generation Polycrystalline Powder Metallurgy Ni-Based Superalloys

Autor: Robert J. Gilbert, Howard J. Stone, Paul Bowen, C. Argyrakis, Hangyue Li, D.J. Child, C. M. F. Rae, O.M.D.M. Messé, Alison Wilson, Ed Pickering, KA Christofidou, Alexander Evans, Nick Jones, Hiroto Kitaguchi, Suyang Yu, Mark Hardy, P. M. Mignanelli

Publikováno v: Christofidou, K A, Hardy, M C, Li, H Y, Argyrakis, C, Kitaguchi, H, Jones, N G, Mignanelli, P M, Wilson, A S, Messé, O M D M, Pickering, E J, Gilbert, R J, Rae, C M F, Yu, S, Evans, A, Child, D, Bowen, P & Stone, H J 2018, ' On the Effect of Nb on the Microstructure and Properties of Next Generation Polycrystalline Powder Metallurgy Ni-Based Superalloys ', Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, pp. 1-12 . https://doi.org/10.1007/s11661-018-4682-4

The effect of Nb on the properties and microstructure of two novel powder metallurgy (P/M) Ni-based superalloys was evaluated, and the results critically compared with the Rolls-Royce alloy RR1000. The Nb-containing alloy was found to exhibit improve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c388469d85e4f85ec88989eab0904048
https://www.research.manchester.ac.uk/portal/en/publications/on-the-effect-of-nb-on-the-microstructure-and-properties-of-next-generation-polycrystalline-powder-metallurgy-nibased-superalloys(f47a1162-5a4d-4217-909b-97529892e5ea).html