稀土铝合金半固态坯料制备的研究  

Preparation Process for Semisolid Slurry of RE Aluminum Alloy

作　　者：易荣喜[1] 谢世坤[1] 黄文先[1] 郑志强[2] 

机构地区：[1]井冈山大学工学院,江西吉安343009 [2]南昌大学机电学院,江西南昌330029

出　　处：《热加工工艺》2008年第23期30-32,共3页Hot Working Technology

基　　金：江西省教育厅科技研究项目(GJJ08429)

摘　　要：研究了稀土对铝合金微观组织的影响以及制备半固态坯料的工艺。实验表明,加入稀土细化了铝合金晶粒组织。采用斜坡液相线法可制备性能优良的半固态坯料,其重熔组织为细小均匀的等轴球状晶,触变性能较好,重熔工艺简单。研究表明,稀土铝硅合金具有优良的半固态性能和较大的应用价值。The influence of RE element on aluminum alloy microstructure was discussed, and the preparation process for semi-solid billet was researched. Experiments show that adding the RE element refines the grain of aluminum alloy. Slope-liquidus method can be used to prepare excellent semi-solid billet, its remelting microstructure is uniform, small equiax crystal, its thixotropy is better and the remelting process is more simple. So Al-Si alloy with RE element has excellent semi-solid performance and great values.

关 键 词：半固态重熔 稀土 铝硅合金 斜坡液相线法 

分 类 号：TG292[金属学及工艺—铸造]