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On the composition of microtwins in a single crystal nickel-based superalloy

Abstract:

Correlative analysis is performed using atom probe tomography and high resolution transmission Kikuchi diffraction techniques on microtwins of ∼10 nm thickness, in a ⟨011⟩-orientated single crystal superalloy crept at 800 °C and 650 MPa. Composition profiles across the microtwins and microtwin-parent boundaries are presented. Enrichment of microtwin-parent interfaces by approximately 2 at.% Cr and 1 at.% Co within the γ′-phase is found; no compositional variations of other elements – Ta, Nb, ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.scriptamat.2016.08.029

Authors


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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:
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
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:
Scripta Materialia More from this journal
Volume:
127
Pages:
37-40
Publication date:
2016-09-08
Acceptance date:
2016-08-23
DOI:
ISSN:
1872-8456
Keywords:
Pubs id:
pubs:641841
UUID:
uuid:226c60e8-0e58-4573-a9aa-e143f41a90c4
Local pid:
pubs:641841
Source identifiers:
641841
Deposit date:
2016-09-09

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