A research on bonding mechanics of butt welding joint of deformed Zn alloy

摘要：

　　SEM,XRD and TEM were used to investigate the bonding mechanics of cold-pressure welding and butt resistance welding joints of deformed Zn alloy.Plastic flow was observed in cold-pressure welding joint.The welding seam preserved a refined microstructure.The butt resistance welding joint had obviously re-crystallized and coarsened,which was favorable to release intemal stress.The substrate Zn alloy and cold-pressure welding joint were both composed of Zn-rich η-phase and Al-rich a-phase.Butt resistance welding joint was primarily composed of η-phase,granular a-phase,a+η phases with lamellar structures and dispersive CuZn4 precipitation.

关键词： Deformed Zn alloy Cold-pressure welding Butt resistance welding Plastic flow Re-crystallization

作者: Liling Zhen Bei Tang Jianxun Fan Leyi Du Liangchao Ma

作者单位: Ningbo Branch of China Academy of Ordnance Science,Ningbo 315103,China; School of Materials Science and Engineering,Central South University,Changsha 410083,China

会议类型: 国际会议

会议名称: the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT-2012)(2012年电机工程与信息技术国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1513-1516

在线出版日期: 2012-09-26（万方平台首次上网日期，不代表论文的发表时间）