Temperature dependence of helium-implantation-induced lattice swelling in polycrystalline tungsten: X-ray micro-diffraction and Eigenstrain modelling
Journal Article
·
· Scripta Materialia
- Univ. of Oxford, Oxford (United Kingdom); Ecole Polytechnique, Palaiseau (France)
- Univ. of Oxford, Oxford (United Kingdom)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Using synchrotron X-ray micro-diffraction and Eigenstrain analysis the distribution of lattice swelling near grain boundaries in helium-implanted polycrystalline tungsten is quantified. Samples heat-treated at up to 1473 K after implantation show less uniform lattice swelling that varies significantly from grain to grain compared to as-implanted samples. An increase in lattice swelling is found in the vicinity of some grain boundaries, even at depths beyond the implanted layer. As a result, these findings are discussed in terms of the evolution of helium-ion-implantation-induced defects.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1248962
- Alternate ID(s):
- OSTI ID: 22471409
OSTI ID: 1251485
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Vol. 107; ISSN 1359-6462
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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