核用SA508-4N钢粗晶区再热裂纹敏感性评价

陈重毅,麻永林,邢淑清,白庆伟,刘永珍

Reheat Cracking Susceptibility in Coarse Grained Heat-affected Zone of SA508-4 Steel for Nuclear Pressure Vessel

Zhongyi CHEN,Yonglin MA,Shuqing XING,Qingwei BAI,Yongzhen LIU

表1 SA508-4N钢的化学成分

Table 1 Chemical composition of SA508-4N steel (mass fraction, %)

Steel C Mn Cr Ni Mo Fe A 0.12 0.36 2.00 3.64 0.60 Bal. B 0.20 0.4 1.75 3.60 0.54 Bal.