EFFECTS OF RARE EARTH ELEMENT LANTHANUM ON MICROSTRUCTURE AND PROPERTIES OF Ag-Cu-Ti SOLDER ALLOY  

稀土镧对Ag-Cu-Ti钎料微观组织与性能的影响(英文)

作　　者：杨长勇[1] 徐九华[1] 丁文锋[1] 付建峰[1] 傅玉灿[1] 

机构地区：[1]南京航空航天大学江苏省精密与微细制造技术重点实验室

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2008年第3期230-234,共5页南京航空航天大学学报（英文版）

基　　金：the Natural Science Foundation of Jiangsu Province(BK2006723);the China Postdoc-toral Science Foundation(20060400282)~~

摘　　要：The effects of rare earth Lanthanum on the microstructure, the physical property and the microhardness of Ag-Cu-Ti solder alloy are studied. Experimental results indicate that the addition of Lanthanum can evidently improve the wettability and the microhardness of Ag-Cu-Ti solder alloy. Analysis results show that the increase in microhardness is related to the refining and uniform distribution of the intermetallic compounds. Proper content of Lanthanum added in Ag-Cu-Ti alloy solder can be controlled below 0.5% in mass percent.研究了稀土元素镧对Ag-Cu-Ti钎料合金微观组织、物理性能和显微硬度的影响。实验结果表明,添加一定量的稀土元素镧对Ag-Cu-Ti钎料合金的熔化温度无明显影响,但可显著提高钎料合金的润湿性能和显微硬度。分析结果表明,稀土元素镧可以细化钎料合金的微观组织,使金属间化合物分布更加均匀。这也是实验条件下Ag-Cu-Ti钎料合金显微硬度提高的主要原因。钎料Ag-Cu-Ti合金中稀土镧加入的质量分数不应超过0.5%。

关 键 词：soldering alloys rare earth additionsl microstructure MICROHARDNESS 

分 类 号：TG580[金属学及工艺—金属切削加工及机床] TG243