摘要
采用机械搅拌、连铸和电磁搅拌相结合的方法制备了SiC/A356铝基复合材料的非树枝晶坯料,经过二次加热和半固态成形技术得到压铸件试样,对其组织和性能进行了分析探讨。结果表明,SiC/A356复合材料在不同状态下的组织形貌与A356对应状态下的组织形貌是相似的;复合材料的抗拉强度随着SiC含量的增加先增高后减低,其弹性模量随着SiC含量的增加而增加。
Non dendrite SiC/A356 composite was prepared synthetically by mechanical stirring, continuous casting and magnetic stirring, and then the semi solid parts of the composite were made after reheating and semi solid forming. The microstructure and mechanical property of the parts were studied. It was showed that the microstructure of SiC/A356 composite in different states was similar to the microstructure of the A356 in the corresponding state; the tensile strength of the parts increased first, then decreased as the SiC content increased; the modulus of elasticity increased when the SiC content increased.
出处
《上海金属》
CAS
2004年第5期1-4,共4页
Shanghai Metals
基金
上海市科技发展基金资助项目(No.015211006)
