[1K08-12] Irradiation Embrittlement Prediction

[1K09] Revisions of JEAC4201 Embrittlement Trend Curve

(2)Discussions on revised embrittlement trend curve

*Toru Oumaya¹, Masahide Suzuki⁴, Koji Fukuya¹, Yasukazu Takada³, Akiyoshi Nomoto², Ryoichi Saeki², Kenji Nishida², Yoshinori Hashimoto² (1. Institute of Nuclear Safety System, Inc., 2. Central Research Institute of Electric Power Industry, 3. The Kansai Electric Power Co, Inc., 4. Nagaoka University of Technology)

Keywords:Reactor pressure vessel, Radiation embrittlement, Ductile-brittle transition temperature, Trend curve

日本溶接協会の原子力研究委員会傘下にIET小委員会が設置され、「脆化予測法見直し式」について国内鋼材の照射脆化機構に関する現状知見に照らした意見交換が行われ、今後の検討課題が明らかにされた。