抗大变形管线钢焊接粗晶区的组织和韧性*
贾书君, 王远方, 谭峰亮, 刘清友

Microstructure and Toughness of Heat-affected Zone of Weld Joint for Pipeline Steels with High Deformability
JIA Shujun, WANG Yuanfang, TAN Fengliang, LIU Qingyou
表2 实验钢板原始力学性能
Table 2 Mechanical properties of test steels
No. Rm
/MPa		 Rp0.2
/MPa		 Rt0.5
/MPa		 Rt1.0
/MPa		 Rt1.5
/MPa		 Rt2.0
/MPa		 Rt0.5
/Rm		 A50
/%		 n UEL
/%
A steel 723 508 530 579 613 635 0.73 22 0.12 12
B steel 725 498 546 587 611 632 0.75 21.5 0.12 11.5