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

图6. 不同参数条件下钢断口处的裂纹

Fig.6. Cracks near the fracture of steel for different parameters (a) Steel A-550℃-50 s, (b) Steel B-550℃-50 s, (c) Steel A-610℃-50 s, (d) Steel B-610℃-50 s