Microstructure and property of friction stir welding joint of 7075Al and AZ31BMg

摘要：

　　Microstructure and forming quality of friction stir welding joints of 7075Al and AZ31BMg with different welding parameters were analyzed.The results show that,good welded joint is obtained when the rotating frequency is 13r/s and the welding speed is 30 mrn/min.An irregular area is formed in the welding center.Meanwhile,the river pattern and eddy-like distribution are found in the weld nugget zone.Besides,brittle intermetallic compound Al12Mgl 7 and Al3Mg2 are found in the welded joint,which cause the increase of microhardness of welded joint.The maximum tension stress of welded joint is 112MPa.

关键词： friction stir welding Aluminum alloy magnesium alloy microstructure tension stress

作者: LiDa Cui Zhanquan Qingxiang Yang Bing Sun Minghui Sun

作者单位: School of Material Science and Engineering, Southwest Jiaotong University, Sichuan, Chengdu 610031; Yanshan University, State Key Laboratory of Metastable Materials Science & Technology, Hebei,Qinhuan School of Material Science and Engineering, Southwest Jiaotong University, Sichuan, Chengdu 610031

会议类型: 国际会议

会议名称: 2012 Postdoctoral Symposium of China on Materials Science & Engineering -- Advanced Materials for Sustainable Development (2012 年中国博士后材料科学与工程学术论坛--先进材料与可持续发展)

会议地点: 上海

会议语种:英文

页码: 210-210

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）