Influence of Electron-Beam Superposition Welding on the IMC-layer of a Cu/Ti Join

摘要：

　　QCr0.8 was electron-beam welded to TC4 and the effect of the intermetallic layer (IMC-layer) on the mechanical properties of the joint was investigated.IMC-layers are joint weaknesses at the Cu fusion line in centered welding and at the Ti fusion line when the beam is deviated towards Cu.A new method referred to as electron-beam superposition welding is presented,and the optimal welding sequence was considered.The IMC-layer produced by centered welding was fragmented and remelted during Cu-side non-centered welding,giving a finely structured compound layer and improved mechanical properties of the joint.The joints tensile strength was 276.0 MPa,or 76.7 percent of that of the base metal.

关键词： Cu/Ti electron beam superposition welding IMC-layer weld sequence

作者: Chen Guoqing Liu Wei Zhang Binggang Feng Jicai

作者单位: State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

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: 256-256

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）