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On the microtwinning mechanism in a single crystal superalloy

Abstract:

The contribution of a microtwinning mechanism to the creep deformation behaviour of single crystal superalloy MD2 is studied. Microtwinning is prevalent for uniaxial loading along 〈011〉 at 800°C for the stress range 625 to 675 MPa and 825°C for 625 MPa. Using quantitative stereology, the twin fraction and twin thickness are estimated; this allows the accumulated creep strain to be recovered, in turn supporting the role of the microtwinning mode in conferring deformation. Atom probe tomography...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.actamat.2017.05.072

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
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Name:
Engineering and Physical Sciences Research Council
Grant:
EP/M022803/1/
Publisher:
Elsevier
Journal:
Acta Materialia More from this journal
Volume:
135
Pages:
314-329
Publication date:
2017-06-05
Acceptance date:
2017-03-31
DOI:
ISSN:
1359-6454
Keywords:
Pubs id:
pubs:703125
UUID:
uuid:a8417aa3-4205-4642-a68d-174fa32d34f4
Local pid:
pubs:703125
Source identifiers:
703125
Deposit date:
2017-08-01

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