Preparation and mechanical properties of SiC/2024 composite by semisolid casting

被引：0
|
作者：
Meng, XY [1 ]
Ding, H [1 ]
Chen, YB [1 ]
Wen, JL [1 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
来源：
RARE METALS | 2002年 / 21卷 / 03期
关键词：
semisolid casting; SiC/2024; composite; wetting; mechanical property;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A SiC/2024 composite was made by semisolid casting. The wetting between SiC and At matrix is improved by treating SiC particles at a high temperature, coating K2ZrF6, and adding Mg to the At melt. An effective way to remove the gas around SiC particles was also found. Microstructures were observed under optical microscope (OM) and scanning electron microscopy (SEM). The results show that SiC particles and At matrix are well bonded and no gaps or cavities around the particles are observed. SiC particles distribute homogeneously in the At matrix. The existence of SiC particles results in the increase of wear resistance and strength.
引用
收藏
页码：203 / 206
页数：4
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