RE和Ti对Al-Mg-Si导体材料组织和性能的影响  

Effects of Rare Earth and Titanium on Microstructure and Properties of Al-Mg-Si Conductive Material

作　　者：赵红亮[1] 孔亚萍[1] 刘志鹏[1] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2015年第4期54-56,66,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：国家自然科学基金资助项目(51174177)

摘　　要：在Al-Mg-Si合金中添加稀土和钛,采用OM,SEM和EDS对合金显微组织进行分析,并通过性能测试,研究稀土和钛对Al-Mg-Si导体材料组织和性能的影响.研究表明:RE和Ti对Al-Mg-Si导体材料均有细化作用.当合金中RE和Ti质量分数分别超过0.3%和0.15%时,稀土元素Ce和Ti发生反应,生成Al20Ti2Ce相,消耗熔体中大量的Ti和Ce,对合金的力学性能和导电性能有不利影响.We added rare earth and titanium in Al-Mg-Si alloy,and the influence of rare earth and titanium on the microstructure and properties of Al-Mg-Si conductive material were studied in this paper,with the optical microscope,scanning electron microscope,DSC analysis on the microstructure of alloy,and testing the performance. The results show that,RE and Ti both have refining effect on Al-Mg-Si conductive material. When the content of RE is more than 0. 3% and the Ti is more than 0. 15%,the phase Al20Ti2 Ce will form in AlMg-Si alloy,consuming a large amounts of Ti and Ce,which has an unfavorable effect on the mechanical properties and electrical conductivity of the alloy.

关 键 词：AL-MG-SI 合金元素 力学性能 导电性能 

分 类 号：TG292[金属学及工艺—铸造]