电解加钛对铝-镁-硅合金组织与性能的影响  

Influence of Titanium on Microstructure and Properties of Al-Mg-Si Alloy

作　　者：马润香[1] 郭金清 谢敬佩[1] 翁永刚[1] 王文炎[1] 宋天福[1] 

机构地区：[1]郑州大学物理工程学院河南省材料物理重点试验室,河南郑州450052 [2]郑州台利铝业有限公司,河南郑州450044

出　　处：《机械工程材料》2004年第10期29-31,共3页Materials For Mechanical Engineering

基　　金：河南省重大科技攻关资助项目(0322020600)

摘　　要：研究了电解加钛铝-镁-硅合金的组织与性能。结果表明:添加钛可显著细化铸态和挤压态的晶粒,随着钛含量的增加,晶粒尺寸逐渐变小;抗拉强度和塑性随着钛含量的增加而增大,但钛含量高时,随着钛含量的增加,抗拉强度提高不大,伸长率逐渐增加。The effects of titanium added by electrolysis on microstructure and properties of Al-Mg-Si alloy have been studied. The results show that addition of titanium can greatly refine the grain size of Al-Mg-Si alloy ingots and extruded profile. With increasing titanium content, the grain size is greatly refined, and the mechanical properties of extruded profile can remarkably improved. The strengthening mechanism is considered as fine grain strengthening and dispersion strengthening.

关 键 词：铝-镁-硅合金 电解低钛铝合金 显微组织 力学性能 

分 类 号：TG146.2[一般工业技术—材料科学与工程]