Study on Mechanism of Welding Hot Crack for Magnesium Alloys

摘要：

　　The TIG welding was used to weld AZ31B magnesium alloys.The results indicate that hot cracking is related to the chemical composition of the filler metal and the welding current.When the AZ40M alloy,with low content of Zn,is used for the filler metal,no hot cracking appears in the weld.While the AZ31B alloy is used as the filler metal,or with no filler metal,hot crack appears in the weld seam.The hot crack will appear when the weleding current is over one point.The reason of hot crack appeared is some low melting eutectic appearing in weld.

关键词： TIG Welding Magnesium Alloys Hot Cracking AZ31B

作者: Deping Jiang Zongxiang Yao

作者单位: Chongqing university of sicience and technolgy,Chongqing,China,401331

会议类型: 国际会议

会议名称: the 16th International Conference on Fluid Dynamic and Mechanical & Electrical Control Engineering (第16届流体动力与机电控制工程国际学术会议 (FDMECE2012))

会议地点: 重庆

会议语种:英文

页码: 384-387

在线出版日期: 2012-11-10（万方平台首次上网日期，不代表论文的发表时间）