2A12/SiC_p陶瓷基复合材料伪半固态触变成形研究  

Thixoforming of the 2A12/SiCp Ceramic Matrix Composites in Pseudo-semi-solid State

作　　者：罗守靖[1] 彭秋才[1] 程远胜[1] 王鹏翔[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《特种铸造及有色合金》2006年第5期257-259,共3页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(50375035)

摘　　要：在粉末冶金的基础上,结合半固态金属加工技术和21世纪陶瓷基复合材料成形的发展趋势,从而提出了陶瓷基复合材料伪半固态触变成形工艺,并且应用该工艺将2A12铝合金粉末和基体SiC颗粒按不同比例混合而得到的复合材料制备出卫星角框架制件。通过金相分析、拉伸等试验,证明了用该工艺成形陶瓷基复合材料是可行的。结果表明,该工艺成形的零件微观组织比较均匀,硬度比较高并且具有一定的塑性,为陶瓷复合材料以及高熔点材料在更多领域中的应用起到推进作用,同时为该工艺的进一步研究奠定了基础。Thixoforming of pseudo-semi-solid ceramic matrix composites was investigated by combining semi-solid metal forming technology with ceramic matrix composites forming based on powder metallurgy. The satellite angle-frames were made of Al/SiCp composites with different volume fractions of 2Al12 alloy by the new method. The results show that the satellite angle-frames possess a homogeneously distributed microstructure and higher hardness as well as certain plasticity.

关 键 词：粉末冶金 伪半固态触变成形 高熔点合金 卫星角框架 

分 类 号：TB332[一般工业技术—材料科学与工程]