Effect of Si and La on the quasi-solid solidification behavior of Al-4.5Cu alloy

被引：0

作者：

Dong, SQ ^{[1
]}

Liu, JN

Zhou, JG

Wen, Y

Liang, YF

Li, JP

Tong, Y

机构：

[1] Xian Jiaotong Univ, Sch Mat Sci & Engn, Xian 710048, Peoples R China

[2] Xian Inst Technol, Xian 710032, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2004年 / 33卷 / 03期

关键词：

casting Al-4.5Cu alloy; quasi-solid; solidification behavior; hot crack resisting properties;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of alloy elements on the quasi-solid solidification behavior of Al-4.5Cu alloy has been studied. The results indicate that Si and La can reduce the hot cracking tendency of Al-4.5Cu; adding 2%Si to matrix, the releasement of crystallization enthalpies makes the recalescence very severe, so the alloy cracks and can't have high strength; Al4.5Cu3Si has a strong ability of compensation and its fracture stress is highest among the Al-Cu-Si alloys; adding of La can reduce the secondary dendrite arm spacing, and the hot cracking properties are improved obviously.

引用

页码：285 / 288

页数：4