稀土对硅相增强原位自生Zn-Al复合材料的影响  

Study of Rare-earth as additon on ReinforcedSi Phase in-situ Zn-A1 Composites

作　　者：刘春莲[1] 赵浩峰[1] 

机构地区：[1]太原理工大学材料与科学工程学院,太原030024

出　　处：《铸造设备研究》2003年第2期13-15,共3页Research Studies On Foundry Equipment

摘　　要：研究了稀土在原位自生硅相增强Zn-A1复合材料中的作用,发现稀土可使复合材料中的增强硅相由块状,片状转变为团球状,并且共晶硅在其上呈辐射状分布。这种增强硅相结构的改善大大提高了复合材料的综合性能,使其常温抗拉强度,延伸率,特别是耐磨性能得到大幅度提高。This paper reports the results of investigations on the innuence of Rare earth as addition on the status of Si reinforced phase of insitu Zn-Al composites.Experimental results show that rare earth can successively change the status of reinforced Si Phase from block shape to nodular shape.This change of reinforced Si phase greatly improves the tensile strength,percentage elongation of the reinforced Si phase in-situ composites Zn-Al at room temperature,especially the wear resistance.

关 键 词：Zn-A1复合材料 稀土 原位自生 增强硅相 

分 类 号：TB331[一般工业技术—材料科学与工程]