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The effect of helium implantation on the deformation behaviour of tungsten: X-ray micro-diffraction and nanoindentation

Abstract:

The effect of helium-implantation-induced defects on deformation behaviour is examined by comparing spherical nano-indents in unimplanted and helium-implanted regions of a tungsten single crystal. Helium-implantation increases hardness and causes large pileups. 3D-resolved X-ray micro-diffraction uniquely allows examination of the complex lattice distortions beneath specific indents. In the ion-implanted material we find reduced lattice rotations and residual strains due to indentation, indic...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author
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Name:
Engineering and Physical Sciences Research Council
Grant:
EP/H018921/1
Publisher:
Elsevier
Journal:
Scripta Materialia More from this journal
Volume:
146
Pages:
335-339
Publication date:
2018-01-04
Acceptance date:
2017-12-12
DOI:
ISSN:
1359-6462
Pubs id:
pubs:810863
UUID:
uuid:1ccf6e1a-b353-4b96-8d64-e2ac936bc12d
Local pid:
pubs:810863
Source identifiers:
810863
Deposit date:
2017-12-14

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