摘要
研究了Cu—Ag—Si—Ga系钎料合金的熔化特性、加工性能和在Cu、Ni和不锈钢母材上的铺展性、钎焊接头强度以及Ga对钎料合金微观组织的影响。推荐一种典型的钎料,其成分为40Ag-2Si-2Ga-余量Cu(质量分数%),熔化温度为786.1~823.0℃,在500℃的条件下的蒸气压低于5.51×10^-8Pa,该钎料适合用于850~870℃电真空器件分级钎焊。
This article studied the melting characteristic, working property of Cu - Ag - Si - Ga series brazing filler alloys and spreading characteristic of them on Cu, Ni and stainless steel plates as well as the brazing strength and effect of Ga on microstructure of experimental alloys. A typical brazing filler alloy is recommended, the chemical composition of it is 40% Ag - 2% Si - 2% Ga - remnant Cu, melting temper- ature is 786.1 -823.0℃, vapor pressure is lower 5.51× 10^-8 Pa. This brazing filler alloy is suitable for grade brazing of electro - vacuum devices at 850 - 870℃.
出处
《贵金属》
CAS
CSCD
北大核心
2009年第4期18-24,共7页
Precious Metals
基金
国家科技支撑计划项目(2006BAE03B03)
关键词
金属材料
银合金
钎料合金
蒸气压
metal materials
silver alloy
brazing filler alloy
vapuor pressure