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Effect of alloy composition and helium ion-irradiation on the mechanical properties of tungsten, tungsten-tantalum and tungsten-rhenium for fusion power applications

Abstract:

Model alloys have been made of pure W and 1% and 5% W-Ta and W-Re. Indentation hardness and modulus data were obtained by nanoindentation to assess the effect of composition on mechanical properties. Results showed that both the Ta and Re compositions hardened with increasing alloy content, greater in the W-5%Ta composition which showed an increase of 1.03GPa (17%), compared to a 0.43GPa (7%) increase in W-5%Re. The samples also showed very small increases in modulus of ∼ 25GPa (6%) in both W...

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

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Publisher copy:
10.1557/opl.2013.356

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
More by this author
Institution:
University of Oxford
Department:
MPLS, Department of Materials
Role:
Author
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Publisher:
Materials Research Society Publisher's website
Journal:
Materials Research Society Symposium Proceedings
Volume:
1514
Pages:
99-104
Publication date:
2013-01-01
DOI:
EISSN:
1946-4274
ISSN:
0272-9172
URN:
uuid:64a2c5ab-1120-4287-abe7-854a7274206a
Source identifiers:
440592
Local pid:
pubs:440592
Language:
English

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