Journal article
High temperature indentation of helium-implanted tungsten
- Abstract:
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Nanoindentation has been performed on tungsten, unimplanted and helium-implanted to ~600 appm, at temperatures up to 750 °C. The hardening effect of the damage was 0.90 GPa at 50 °C, but is negligible above 450 °C. The hardness value at a given temperature did not change on re-testing after heating to 750 °C. This suggests that the helium is trapped in small vacancy complexes that are stable to at least 750 °C, but which can be bypassed due to increased dislocation mobility (cross slip or climb) above 450 °C.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 951.8KB, Terms of use)
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- Publisher copy:
- 10.1016/j.msea.2014.12.034
Authors
- Publisher:
- Elsevier
- Journal:
- Materials Science and Engineering: A More from this journal
- Volume:
- 625
- Pages:
- 380-384
- Publication date:
- 2015-02-01
- Edition:
- Publisher's version
- DOI:
- ISSN:
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0921-5093
- Language:
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English
- Keywords:
- UUID:
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uuid:185c4f62-b72a-447b-bcdb-78b9638ad4de
- Local pid:
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ora:9734
- Deposit date:
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2015-01-14
- ARK identifier:
Terms of use
- Copyright holder:
- Elsevier BV
- Copyright date:
- 2014
- Notes:
- © 2014 Elsevier B.V.. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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