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

作     者：MENGXianyun, DING Hua, CHEN Yanbo, and WEN JinglinSchool of Materials and Metallurgy, Northeastern University, Shenyang 110004, China MENGXianyun, DING Hua, CHEN Yanbo, and WEN JinglinSchool of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

作者机构：School of Materials and Metallurgy Northeastern University Shenyang 110004 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2002年第21卷第3期

页      面：203-206页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：The project is financially supported by the National Key Basic Research and Development Foundation (G2000067208-4) 

主　　题：semisolid casting SiC/2024 composite wetting mechanical property 

摘      要：A SiC/2024 composite was made by semisolid casting. The wetting between SiC and Al matrix is improved by treating SiC particles at a high temperature, coating K2ZrF6, and adding Mg to the Al 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 Al matrix are well bonded and no gaps or cavities around the particles are observed. SiC particles distribute homogeneously in the Al matrix. The existence of SiC particles results in the increase of wear resistance and strength.