Sn-9Zn-xRE钎料钎焊6061铝合金接头性能研究  

Research on Performance of Brazed Joints of 6061 Al Alloy by Sn-9zinc-xRE Solder

作　　者：姚军[1] 陈斌[1] 崔反东 李仕臣 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051

出　　处：《热加工工艺》2014年第13期167-168,172,共3页Hot Working Technology

摘　　要：在Sn-9Zn合金的基础上添加T（0．1-0．4）wt％的混合稀土（La、Ce）。使用Sn．9Zn-xRE钎料对6061铝合金在空气炉中钎焊。接头的抗剪切强度得到显著提高。当稀土元素添加量为0．2wt％时，强度由12．88MPa上升至最大值16．73MPa，强度提高约30％。通过能谱分析发现，在钎料与母材的界面形成了以Al为基的Al、Zn固溶体，并且钎料中的Zn向母材进行了扩散。0.1 wt%-0.4wt% mixed rare earth metal （La, Ce） was added into Sn-9Zn alloy. 6061 AI alloy was brazed with Sn-9zn-xRE solder in air furnace. The shear strength of the welded joint improves greatly. When 0.2 wt% rare earth element is added, the strength rises from 12.88 MPa into 16.73 MPa, which can reach the maximum. The improved degree of strength is 30%. According to the analysis of energy dispersive spectrometer, A1 and Zn solid solution appear at the interface of solder and base metal. The Zn element of solder diffuses into base metal.

关 键 词：Sn-9Zn-xRE钎料 6061铝合金 抗剪切强度 

分 类 号：TG425.1[金属学及工艺—焊接]