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In situ observation of damage structure in ODS austenitic steel during electron irradiation

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Title: In situ observation of damage structure in ODS austenitic steel during electron irradiation
Authors: Oka, H. Browse this author
Watanabe, M. Browse this author
Kinoshita, H. Browse this author
Shibayama, T. Browse this author
Hashimoto, N. Browse this author
Ohnuki, S. Browse this author
Yamashita, S. Browse this author
Ohtsuka, S. Browse this author
Keywords: ODS
austenitic stainless steel
mechanical alloying
electron irradiation
helium implantation
Issue Date: 1-Oct-2011
Publisher: Elsevier B.V.
Journal Title: Journal of Nuclear Materials
Volume: 417
Issue: 1-3
Start Page: 279
End Page: 282
Publisher DOI: 10.1016/j.jnucmat.2010.12.156
Abstract: The oxide dispersion strengthening method was applied to an austenitic stainless steel based on SUS316 by mechanical alloying with additions of minor alloying elements. This ODS austenitic stainless steel was electron-irradiated to investigate the damage structure. Microstructural observation revealed that ODS austenitic stainless steel has a fine distribution of complex oxides. The in-situ observation during electron irradiation showed that both dislocation loops and small cavities nucleated at the interface between oxide particles and matrix. In the case of helium implantation, defect clusters also nucleated at the interface. These results suggest that the oxide interface is an effective sink for irradiation-induced point defects and helium atoms.
Type: article (author version)
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: 岡 弘

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