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Simulating hydrogen in fcc materials with discrete dislocation plasticity

Abstract:

We have performed discrete dislocation plasticity simulations of hydrogen charged microcantilever bend tests on an fcc material at realistic hydrogen concentrations. This was achieved by accounting for the near-core solute-solute interactions which was found to reduce the dislocation nucleation time and stress. Dislocation pile-ups were observed at the neutral mid plane of the cantilever, and hydrogen was found to increase the number of dislocations in the pile-ups. Meanwhile, hydrogen was ob...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.ijhydene.2020.01.118

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
ORCID:
0000-0002-2419-6736
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:
Engineering Science
Role:
Author
ORCID:
0000-0001-6725-9373
EP/L014742/1 More from this funder
Publisher:
Elsevier Publisher's website
Journal:
International Journal of Hydrogen Energy Journal website
Volume:
45
Issue:
28
Pages:
14565-14577
Publication date:
2020-04-29
Acceptance date:
2020-01-17
DOI:
ISSN:
0360-3199
Language:
English
Keywords:
Pubs id:
1102589
Local pid:
pubs:1102589
Deposit date:
2020-05-01

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