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Grain boundary properties of a nickel-based superalloy: Characterisation and modelling

Abstract:

Miniaturised tensile tests coupled with in-situ scanning electron microscopy are used to deduce the grain boundary properties of a nickel-based superalloy at 750 °C. This allows the damage initiation, evolution and failure processes to be observed directly. The significant variation in ductility – consistent with the limited number of grain boundaries being present – is rationalised using a crystal plasticity approach calibrated by experiments on single crystals loaded along the <001> &...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1016/j.actamat.2018.03.059

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Oxford college:
Wolfson College
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
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Publisher:
Elsevier Publisher's website
Journal:
Acta Materialia Journal website
Volume:
151
Pages:
377-394
Publication date:
2018-04-02
Acceptance date:
2018-03-22
DOI:
EISSN:
1873-2453
ISSN:
1359-6454
Pubs id:
pubs:844641
URN:
uri:f0a3fa6a-b81e-48e9-8630-614e2eb3379f
UUID:
uuid:f0a3fa6a-b81e-48e9-8630-614e2eb3379f
Local pid:
pubs:844641

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