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.
出处
《热加工工艺》
CSCD
北大核心
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)
关键词
半固态重熔
稀土
铝硅合金
斜坡液相线法
semisolid remelting
rare earth（RE）
Al-Si alloy
slope-liquidus method
