水平连铸复合Al-10%Pb-钢背轴瓦材料的组织研究  

Research of Microstructure of Al-10%Pb-Steel Bearing Material in Process of Horizontal Continuous Casting

作　　者：倪红军[1] 黄明宇[1] 朱昱[1] 廖萍[1] 孙宝德[2] 

机构地区：[1]南通工学院机械工程系,江苏南通226007 [2]上海交通大学材料学院,上海200030

出　　处：《铸造》2003年第10期766-768,共3页Foundry

基　　金：国家重点研究开发规划项目-973专项(G1999064900);南通市科委自然科学基金(01004)。

摘　　要：采用水平连铸复合的方法,在冷却速度达到80℃/s的条件下,将Al 10%Pb合金熔体直接铸造复合到钢背上获得Al 10%Pb 钢背轴瓦材料。研究结果表明,在Al 10%Pb合金组织中,球状的铅相颗粒分布均匀、平均直径<13μm;Al 10%Pb 钢背轴瓦材料过渡层为舌状组织结构,这种舌状过渡层组织由FeAl、Fe2Al5和FeAl3相组成。Under the cooling rate 80℃/s, an Al-10%Pb-steel backing bearing material was obtained by casting Al-10%Pb melt onto steel backing in the process of horizontal continuous casting. The experimental results indicate that no gravity segregation existed in Al-10%Pb alloy. The little and spherical Pb particles were dispersed in Al matrix and their sizes were below 13μm. The microstructure of transition zone of the bearing material was ligule-shape which was composed of FeAl, Fe_2Al_5 and FeAl_3.

关 键 词：A1-Pb合金 轴瓦材料 组织 水平连铸 铝合金 

分 类 号：TG249.7[金属学及工艺—铸造]