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Radiation-Induced Segregation and Grain Boundary Migration in Fe–Cr–Ni Model Alloy under Irradiation

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Title: Radiation-Induced Segregation and Grain Boundary Migration in Fe–Cr–Ni Model Alloy under Irradiation
Authors: Takahashi, Heishichiro Browse this author
Hashimoto, Naoyuki Browse this author
Keywords: segregation
point defects
sink boundary migration
Issue Date: Nov-1993
Publisher: The Japan Institute of Metals
Journal Title: Materials Transactions, JIM
Volume: 34
Issue: 11
Start Page: 1027
End Page: 1030
Publisher DOI: 10.2320/matertrans1989.34.1027
Abstract: A Fe–Cr–Ni model alloy was electron-irradiated using a high voltage electron microscopy (1000 kV), and in-situ observations on structural evolution and microchemical analyses were carried out. When the Fe–Cr–Ni alloy was irradiated, the nucleations of dislocation loops followed by voids were observed and at the same time when a grain boundary migration occurred. The compositional analysis after irradiation of an area including a grain boundary indicated nickel enrichment and chromium depletion near the grain boundary. It is suggested that when the radiation-induced point defects flow into the grain boundary, boundary migration and solutes redistribution are induced and the magnitudes depend on net point defects flow, especially that of interstitial atoms.
Type: article
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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