YL112铝合金流变压铸的组织及力学性能研究  

Microstructure and Mechanical Properties of Rheo--Die Casting YLl12 Aluminum Alloy

作　　者：刘艳华[1] 钱娜[1] 

机构地区：[1]江西渝州科技职业学院新能源工程系,江西新余338029

出　　处：《中国材料科技与设备》2013年第3期51-52,55,共3页Chinese Materials Science Technology & Equipment

基　　金：江苏省科技型企业创新资金项目（BC2010182）

摘　　要：本文介绍了YL112铝合金半固态流变压铸成形试验，研究了流变压铸YL112铝合金的组织和力学性能。试验结果表明：与液态压铸成形件相比，半固态压铸成形件压铸缺陷较少，力学性能优良，热处理后性能进一步提高。从微观角度解释了两种不同成形方法产生这一性能差异的内在原因。Microst ruct ure and mechanical properties of rheo -- die casting YL112 aluminum were investigated with die casting semi -- solid billets on DCC280 horizontal die casting machine. The results indicate that： comparing with liquid die castings , the die castings have desirable mechanical properties and little defects, Furthermore , the mechanical properties of the die castings can be improved after heat treatment. Meanwhile the mechanism of why the semi--solid castings are superiors to the liquid die castings is also discussed f tom the microcosmic view.

关 键 词：YL112铝合金 流变压铸 力学性能 显微组织 

分 类 号：TG249.2[金属学及工艺—铸造]