稀土Y在电解铜及Cu—Cr合金中的分布与微观组织特征  

Characteristics of distribution and microstructures of Y in Cu and Cu-Cr Alloys

作　　者：张萌[1] 郭守晖[1] 帅歌旺[1] 陈晓芳[1] 

机构地区：[1]南昌大学材料科学与工程学院,江西南昌330047

出　　处：《金属热处理》2005年第C00期274-277,共4页Heat Treatment of Metals

基　　金：北京科技大学新金属材料国家重点实验室开放研究基金资助,江西省教育厅科技项目资助.

摘　　要：比较研究了稀土Y在电解铜和Cu—Cr合金中的分布情况以及它与Cu中合金元素的相互影响。结果表明：稀土在两种合金中均以化合物的形式存在，呈颗粒状分布在晶内，或富集在晶界。能谱分析表明这些颗粒或晶界富集处主要含Cu、Y、O三种元素，而且，两种合金中稀土化合物富集区域所含有这三种元素的原子含量百分比相差不大。在Cu-Cr-Y合金中的共晶组织中几乎不含Y。In this paper, a research has been made on the distribution state of Y in the Cu-Y ＆ Cu-Cr-Y alloys and the interactions among Y and other elements. The result shows there are two kinds of places for Y to exist in the form of compound——the grain boundary and inside the crystal. Besides Y, Cu, O also exist in those places. The ratio of atomic content for these three elements is close, which not only occur in the same alloy but also between the two alloys. Another interesting thing is that Y will exist preferentially in the grain boundaries and inside the crystals but not in the eutectic structures.

关 键 词：稀土Y Cu—Y合金 Cu-Cr-Y合金 晶界 元素分布 

分 类 号：TG142.71[一般工业技术—材料科学与工程] O614.33[金属学及工艺—金属材料]