Microstructures and Properties of Copper-steel Welded Joint by Twin Wire Welding
The paper studies the twin wire butt welding of 6mm-thick T2 copper and Q235 steel plate by using the twin wire consisting of one copper-plated welding wire and one steel welding wire. According to the appearance detection, the weld joint gained is sound in shape without crackles, pores, incomplete fusion and other defects. As shown by the mechanical property, SEM and EDAX and in the metallographic analysis and test, the rupture position of coppersteel welded joint is located in the copper-part HAZ when the tensile strength reaches above 210MPa and Fe content of the welded joint involved in 1＃ test specimen reaches around 22.78-26.75％, with the hardness achieving between 102~107HB and the weld structure being (+) duplex solid solution.
copper-steel welded joint twin-wire welding mechanical property metallurgical structure composition of weld line
J.Yu B.W.Wu S.B.Zheng K.H.Wang Q.Zhou
School of Materials Science and Engineering, Nanjing University of Science and Technology,Nanjing, 210094
国际会议
北京
英文
376-380
2010-10-25（万方平台首次上网日期，不代表论文的发表时间）