Radiation-induced segregation and corrosion behavior on Sigma 3 coincidence site lattice and random grain boundaries in proton-irradiated type-316L austenitic stainless steel

Sakaguchi, N.; Endo, M.; Watanabe, S.; Kinoshita, H.; Yamashita, S.; Kokawa, H.

Radiation-induced segregation and corrosion behavior on Sigma 3 coincidence site lattice and random grain boundaries in proton-irradiated type-316L austenitic stainless steel

Sakaguchi, N.; Endo, M.; Watanabe, S. et al.

Journal of Nuclear Materials, 2013, 434(1-3), 65-71

Permalink : https://hdl.handle.net/2115/52689

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アクセス権	open access
URI	https://hdl.handle.net/2115/52689
タイトル	Radiation-induced segregation and corrosion behavior on Sigma 3 coincidence site lattice and random grain boundaries in proton-irradiated type-316L austenitic stainless steel
著者	Sakaguchi, N. ; Endo, M. ; Watanabe, S. ; Kinoshita, H. ; Yamashita, S. ; Kokawa, H.
e-Rad_Researcher 70344489 著者名 Sakaguchi, N.
著者名 Endo, M.
著者名 Watanabe, S.
著者名 Kinoshita, H.
著者名 Yamashita, S.
著者名 Kokawa, H.
言語	英語
発行日	2013-03
出版者	Elsevier
収録物名	Journal of Nuclear Materials
巻(号)	434(1-3)
ページ	65-71
抄録	The behavior of radiation-induced segregation (RIS) and intergranular corrosion at random grain boundaries and Sigma 3 coincidence site lattice (CSL) boundaries in proton-irradiated 316L stainless steel was examined. The frequency of the CSL boundaries was enhanced up to 86.6% by grain boundary engineering treatment prior to irradiation. Significant nickel enrichment and chromium depletion were induced at the random grain boundary owing to the RIS. At faceted Sigma 3 CSL boundaries, chromium depletion occurred at the asymmetrical boundary facet plane whereas no RIS was observed at the coherent twin boundary. After the electrochemical etching test, an intergranular corrosion groove was found along the random grain boundaries because of the low chromium concentration (similar to 12%) at the boundaries. At the faceted Sigma 3 CSL boundaries, the discontinuous groove along the asymmetric facet plane was completely disrupted by the non-corrosive coherent twin boundary. (C) 2012 Elsevier B.V. All rights reserved.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0022-3115
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.jnucmat.2012.11.036