M-A岛高温回火转变产物对核电SA508-3钢冲击韧性影响机制

蒋中华, 杜军毅, 王培, 郑建能, 李殿中, 李依依

Mechanism of Improving the Impact Toughness of SA508-3 Steel Used for Nuclear Power by Pre-Transformation of M-A Islands

JIANG Zhonghua, DU Junyi, WANG Pei, ZHENG Jianneng, LI Dianzhong, LI Yiyi

图11 SA508-3钢-60℃冲击断口形貌和断口侧剖面SEM像 (a-c) the samples subjected to tranditional tempering (d-f) modified tempering by pre-tempering at 400oC

Fig.11 SEM images of fractographs (a, b, d, e) and the side section profiles (c, f) of Charpy impact samples fractured at -60℃