(南京航空航天大学 材料科学与技术学院，南京 210016)
摘 要: 分别选取3种典型的含银软钎料(Sn-Ag-Cu、Sn-Zn、Sn-Bi)和硬钎料(Ag-Cu-Zn、Cu-P、Zn-Al)作为代表进行阐述。综述了国内外含银钎料研究的最新研究成果，归纳分析银元素对软钎料与硬钎料的物理性能、显微组织和力学性能的影响规律，提出含银钎料在研究和应用过程中存在的问题及相应的解决措施，展望含银钎料的研究和发展趋势。
关键字: 银元素；含银钎料；润湿性能；钎焊接头；软钎料；硬钎料
（College of Materials Science and Technology,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China）
Abstract:Ag is used as a beneficial alloy element in no matter solders or brazing filler metals. Obviously, the addition of Ag has a positive function on melting temperature, wettability, mechanical property and conductivity of filler metals. Therefore, Ag is still widely used in many researches and production in spite that Ag is very expensive. Respectively, three kinds of typical solders (Sn-Zn, Sn-Bi, Zn-Al) and brazing filler metals (Ag-Cu-Zn, Cu-P, Zn-Al) were selected as the representative. The research status on the Ag-contained filler metals and the influence rules of Ag addition on the change of filler metals physical property and microstructure as well as mechanical property were reviewed. Moreover, the problems and difficulties in the process of studying Ag-contained solders and brazing filler metals were presented. Synchronously, some suggestions were put forward to solve the problems and difficulties mentioned above, which provides theory guide for the follow-up study of Ag-contained solders and brazing filler metals, and their prospects were also prospected.
Key words: Ag; Ag-contained alloy; wettability; solder joint; solder; brazing filler metal
