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Grain boundary engineering of austenitic steel PNC316 for use in nuclear reactors

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Title: Grain boundary engineering of austenitic steel PNC316 for use in nuclear reactors
Authors: Sekine, M. Browse this author
Sakaguchi, N. Browse this author →KAKEN DB
Endo, M. Browse this author
Kinoshita, H. Browse this author
Watanabe, S. Browse this author
Kokawa, H. Browse this author
Yamashita, S. Browse this author
Yano, Y. Browse this author
Kawai, M. Browse this author
Keywords: grain boundary engineering
coincidence lattice site boundary
random grain boundary
cold working
electron irradiation
Issue Date: 15-Jul-2011
Publisher: Elsevier B.V.
Journal Title: Journal of Nuclear Materials
Volume: 414
Issue: 2
Start Page: 232
End Page: 236
Publisher DOI: 10.1016/j.jnucmat.2011.03.049
Abstract: Austenitic stainless steel PNC316 was subjected to grain boundary engineering (GBE). It was found that the grain boundary engineered PNC316 (PNC316-GBEM) had a coincidence site lattice (CSL) fraction of 86% and that the network of random grain boundaries was perfectly divided by the CSL boundaries. The thermal stability and the void swelling behavior of PNC316-GBEM were investigated by means of SEM and TEM analyses. After thermal aging at 973 K for 100 h, structural changes were observed neither in the grain boundary networks of PNC316-GBEM nor in another sample of PNC316-GBEM subjected to 20% additional cold rolling, PNC316-GBEM20%CW. PNC316-GBEM showed a higher void swelling rate than as-received PNC316 (PNC316-AS). However, with additional 20% cold rolling after GBE, the void swelling rate decreased to as low as that of PNC316-AS.
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: 坂口 紀史

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