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Journal article

Atom Probe Tomography investigations of microstructural evolution in an aged nickel superalloy for exhaust applications

Abstract:
The formation and evolution of nanoscale γ″ (Ni 3 (Nb, Ti, Al)) precipitates formed during thermal aging in the nickel superalloy Inconel 625 has been characterized using Atom Probe Tomography. The onset of γ″ precipitation has been found to occur after only one hour, markedly shorter than the aging time reported in the current literature. Evolution of precipitate composition and morphology during aging has been analyzed, and the potential onset of the γ″ → δ (Ni 3 (Nb, Mo, Cr, Fe, Ti)) transformation after long aging times is discussed.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s11661-018-5098-x

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Oxford college:
Trinity College
Role:
Author


Publisher:
Springer Nature
Journal:
Metallurgical and Materials Transactions A More from this journal
Volume:
50
Issue:
4
Pages:
1862-1872
Publication date:
2019-01-18
Acceptance date:
2018-12-13
DOI:
EISSN:
1543-1940
ISSN:
1073-5623


Keywords:
Pubs id:
pubs:972334
UUID:
uuid:508507dc-c916-4c9f-8a3e-307287f773b2
Local pid:
pubs:972334
Source identifiers:
972334
Deposit date:
2019-03-19
ARK identifier:

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