镧与SnPb合金体系中组元的相互作用关系  

Interaction Relation between Lanthanum and Constituent Elements of Sn-Pb Alloy

作　　者：薛松柏[1] 马鑫[1] 钱乙余[1] Yoshida F 

机构地区：[1]哈尔滨工业大学现代焊接生产技术国家重点实验室,黑龙江哈尔滨150001 [2]广岛大学工学部

出　　处：《中国稀土学报》2000年第4期334-336,共3页Journal of the Chinese Society of Rare Earths

基　　金：机械工业部机械工业人才科技基金!(97JF0 0 2 2 );哈尔滨市科技攻关计划资助项目!(99112 110 0 6 )

摘　　要：采用二元系Miedema生成热模型及其Tanaka过剩熵修正和三元系Chou几何模型 ,分析了稀土元素La与Sn Pb软钎料合金体系中组元元素的相互作用关系。热力学计算表明 ,在Sn Pb合金体系中 ,La具有“亲Sn”倾向。这是添加稀土元素改变Sn Pb软钎料合金金属学性能的一个基本前提。By means of the Miedema formation energy model for binary system with the Tanaka modification by excess entropy and the Chou geometric model for ternary system, the interaction relation between rare earth element La and the constituent elements of Sn Pb alloy system was analyzed. The thermodynamic calculating results show that La has higher affinity with Sn in the Sn Pb system. This is an important foundation for the improvement of the metallurgical properties of Sn Pb solder alloy by adding rare earth element.

关 键 词：镧 Sn-Pb合金 热力学 软钎料合金 

分 类 号：TG425.1[金属学及工艺—焊接] TG146.1[一般工业技术—材料科学与工程]