Optimizing evaluation method of irradiation-assisted stress corrosion cracking in Top Guide of BWR
三橋 忠浩 Tadahiro MITSUHASHI 服部 泰大 Yasuhiro HATTORI 大木 俊 Suguru OOKI 神長 貴幸 Takayuki KAMINAGA 渡辺 義雄 Yoshio WATANABE 内山 好司 Koji UCHIYAMA
BWR Core Components IASCC PLM PSR Top Guide
As for BWR, Core components made of austenitic stainless steels where IASCC is assumed are Top Guide, Core Shroud and Core Plate. Since Top Guide has been exposed to high flux of neutron irradiation during plant operation, the evaluation method should be established using reasonable and proper evaluation conditions. Based on this background, study on evaluation method for Top Guide was performed in this research as described below.