稀土元素对低温铝基钎料性能影响的研究  

Effect of Rare-Earth Elements on the Properties of Low Temperature Aluminum-based Brazing Filler Metals

作　　者：董仕节[1] 史耀武[1] 匡一心[1] 周文东[1] 

机构地区：[1]湖北汽车工业学院,西安交通大学机械工程学院焊接所,东风汽车公司制造工程部

出　　处：《稀土》1996年第4期15-19,共5页Chinese Rare Earths

摘　　要：本文研究了稀土元素Ｙ、Ｃｅ对Ａｌ－Ｚｎ－Ｃｕ－Ｓｉ系列低温铝基钎料的熔化温度、钎焊工艺性、电极电位及其接头的机械性能及抗腐蚀性能的影响。结果表明：少量Ｙ、Ｃｅ的加入，对钎料的熔化温度影响不大，能提高钎料的钎焊工艺性；稀土Ｙ、Ｃｅ能细化晶粒，改变组织的分布状态，不改变钎料的电极电位，但却提高了钎焊接头的机械性能和抗腐蚀性。In this paper the effect of Y and Ce on the melting temperature, brazability, electrode potential of the Al-Cu-Zn-Si brazing filler alloy system, and the mechanical properties and corrosion resistance of brazing jonts have been investigated. The results show that the melting temperature was hardly affected and the brazability was improved when Y, Ce were added. Rare earth elements Y, Ce can refine grains and change structural distribution condition, and increase the mechanical properties and corrosion resistance of brazing joints, but can not change electrode potential of the brazing filler metals.

关 键 词：稀土 钎料 铝合金 机械性能 熔化温度 钎料 

分 类 号：TG425[金属学及工艺—焊接]