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Segregation-assisted plasticity in Ni-based superalloys

Abstract:

Correlative high resolution transmission electron microscopy and energydispersive X-ray spectroscopy are used to study deformation-induced planar faults in the single crystal superalloy MD2 crept at 800 ◦C and 650 MPa. Segregation of Cr and Co at microtwins, anti-phase boundaries (APB) and complex/superlattice extrinsic and intrinsic stacking faults (CESF/SESF and CISF/SISF) is confirmed and quantified. The extent of this is found to depend upon the fault type, being most pronounced for the A...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s11661-018-4567-6

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Oxford college:
St Edmund Hall
Role:
Author
Publisher:
Springer US Publisher's website
Journal:
Metallurgical and Materials Transactions A Journal website
Volume:
49
Issue:
9
Pages:
4173–4185
Publication date:
2018-03-26
Acceptance date:
2018-03-05
DOI:
EISSN:
1543-1940
ISSN:
1073-5623
Source identifiers:
829025
Keywords:
Pubs id:
pubs:829025
UUID:
uuid:97deeca5-e42c-4e63-96e4-bbf912d786c4
Local pid:
pubs:829025
Deposit date:
2018-03-12

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