原位合成VC颗粒增强铁基复合材料的热力学分析  

Thermodynamics Analysis on Iron-matrix Composite Reinforced by VC Particulates and In-situ Synthesis

作　　者：倪亚辉[1] 丁义超[1] 王静[2] 

机构地区：[1]成都电子机械高等专科学校国家实训基地,四川成都610031 [2]成都电子机械高等专科学校机械工程系,四川成都610031

出　　处：《热加工工艺》2008年第12期8-11,共4页Hot Working Technology

基　　金：四川省教育厅重大培育基金资助项目(07ZZ012)

摘　　要：应用粉末冶金的方法制备了VC颗粒增强铁基复合材料,用SEM、XRD对复合材料结构进行了分析,应用热力学原理对原位合成VC的热力学过程进行了分析。热力学计算结果表明,VC在1373K烧结温度下能够原位合成,复合材料实现了烧结致密化。复合材料主要由α-Fe和VC颗粒组成。VC iron-matrix composite was prepared by powder metallurgy. The microscopic structure of the composite was analyzed by SEM, XRD. The mechanism of VC fabricated by in-situ synthesis was analyzed by thermodynamics principles. Thermodynamics calculation results show that VC can be produced by in-situ synthesis at the sintering temperature of 1373K, the sintering densification of the composite is realized, the composite mainly consists of α-Fe and VC particles

关 键 词：粉末冶金 铁基复合材料 热力学 

分 类 号：TF125.1[冶金工程—粉末冶金]