冷丝辅助旋转/摇动电弧窄间隙MAG焊缝成形特性及接头组织性能演变机制

李红, 姜玉清, 曹玉鹏, 王加友, 刘澍彬

Weld Formation Characteristics and the Evolution Mechanisms of Joint Microstructure and Mechanical Properties for Rotating/Swing Arc Narrow Gap MAG Welding Assisted by Cold Wire

LI Hong, JIANG Yuqing, CAO Yupeng, WANG Jiayou, LIU Shubin

表1 DH36母材和ER50-6焊丝的主要化学成分 (mass fraction / %)

Table 1 Main chemical compositions of base metal DH36 and welding wire ER50-6

Material C Mn Si Cr Ni V P S Cu Mo Al Fe DH36 0.158 1.018 0.394 0.040 0.070 0.001 0.010 0.016 0.024 0.017 0.019 Bal. ER50-6 0.070 1.500 0.880 0.020 0.010 0.002 0.015 0.008 0.060 0.004 0.004 Bal.