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Annealing effect on microstructural recovery in 316L and A533B

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Title: Annealing effect on microstructural recovery in 316L and A533B
Authors: Hashimoto, N. Browse this author
Goto, S. Browse this author
Inoue, S. Browse this author
Suzuki, E. Browse this author
Issue Date: Nov-2017
Publisher: Elsevier
Journal Title: Journal of nuclear materials
Volume: 495
Start Page: 1
End Page: 5
Publisher DOI: 10.1016/j.jnucmat.2017.07.062
Abstract: An austenitic model alloy (316L) and a low alloy steel (A533B) were exposed to constant or fluctuating temperature after electron irradiation to a cumulative damage level of 1 displacement per atom. 316L model alloy was exposed to LWR operating temperature during electron irradiation, and were exposed to a higher temperature at a high heating and cooling rates. The annealing experiment after irradiation to 316L resulted in the change in irradiation-induced microstructure; both the size and the number density of Frank loop and black dots were decreased, while the volume fraction of void was increased. In the case of A533B, the aging experiment after electron irradiation resulted in the shrinkage or the disappearance of black dots and the growth of dislocation loops. It is suggested that during annealing and/or aging at a high temperature the excess vacancies could be provided and flew into each defect feature, resulting in that interstitial type feature could be diminished, while vacancy type increased in volume fraction if exists. (C) 2017 Elsevier B.V. All rights reserved.
Rights: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/75975
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 橋本 直幸

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