高性能高硅铝基合金研究展望  

Development of High Performance Al-Si Alloy with High Si Content

作　　者：安建军[1,2] 严彪[1,2] 程光[1,2] 

机构地区：[1]上海市金属功能材料开发应用重点实验室 [2]同济大学材料科学与工程学院,上海200092

出　　处：《金属功能材料》2009年第4期50-52,共3页Metallic Functional Materials

摘　　要：目前国内外对于高性能铝硅合金的两大研究方向,一是低硅铝合金(Si≤1%),尽量降低Al-Si基体合金中杂质含量,最大限度提高合金导电性能;二是高硅铝合金(Si≥30%),尽可能提高硅在铝合金中的过饱和度,此类高性能铝合金侧重提高材料的电热稳定性、耐摩擦性等力学性能。本文总结了国内外对于高硅铝合金的研究进展,提出通过添加稀土元素优化合金成分和采用先进制备技术等方法,以期获得高性能硅铝合金。There are two main research ways of high performance Al-Si alloy in the world. One is to decrease silicon content（Si≤1%） and other impurity elements content in order to obtain the high conductivity. The other main work is to increase silicon content（Si≥30%）. By increasing the maximum saturation of silicon in aluminum extremely, these Al-Si alloys have great hardness and great electrothermal stability. The research progress in the world is pres- ented, and a new kind of Al-Si alloy by adding some special RE elements and by advanced processing way, which posses high conductivity, high strength and high electrothermal stability, is proposed.

关 键 词：高性能铝合金 高导电性 高电热稳定性 

分 类 号：TG146.21[一般工业技术—材料科学与工程]