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Title: Temperature dependence of helium-implantation-induced lattice swelling in polycrystalline tungsten: X-ray micro-diffraction and Eigenstrain modelling

Journal Article · · Scripta Materialia
 [1];  [2];  [3];  [2]
  1. Univ. of Oxford, Oxford (United Kingdom); Ecole Polytechnique, Palaiseau (France)
  2. Univ. of Oxford, Oxford (United Kingdom)
  3. 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 Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; 633053
OSTI ID:
1248962
Alternate ID(s):
OSTI ID: 1251485
Journal Information:
Scripta Materialia, Vol. 107; ISSN 1359-6462
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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Cited By (6)

Recent advances in characterising irradiation damage in tungsten for fusion power journal November 2019
Non-Contact Measurement of Thermal Diffusivity in Ion-Implanted Nuclear Materials journal November 2015
Hardening and Strain Localisation in Helium-Ion-Implanted Tungsten journal December 2019
Orientation-dependent indentation response of helium-implanted tungsten journal June 2019
Hardening and Strain Localisation in Helium-Ion-Implanted Tungsten journal January 2019
Non-Contact Measurement of Thermal Diffusivity in Ion-Implanted Nuclear Materials preprint January 2015