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Visco-plasticity during in-situ cooling from solidification of a nickel-base single crystal superalloy using neutron diffraction

Abstract:

In-situ neutron diffractometry is performed to study the visco-plasticity in a nickel-base single crystal superalloy during in-situ cooling from high temperatures. It is found that visco-plastic deformation has two contributions from creep and stress relaxation, which are subject to the accumulation of dislocation activity and dislocation annihilation, respectively. Use has been made of the lattice strain evolution of the (200) γ+γ′ peak to confirm this effect. The decrease in lattice strain ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1016/j.msea.2016.11.013

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author
ORCID:
0000-0003-2141-5865
Publisher:
Elsevier Publisher's website
Journal:
Materials Science and Engineering: A Journal website
Volume:
681
Pages:
32-40
Publication date:
2016-11-10
Acceptance date:
2016-11-02
DOI:
EISSN:
1873-4936
ISSN:
0921-5093
Pubs id:
pubs:863794
URN:
uri:8e3b672e-1ed2-4124-95c0-003dd32d22a6
UUID:
uuid:8e3b672e-1ed2-4124-95c0-003dd32d22a6
Local pid:
pubs:863794
Paper number:
C

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