碳化钒增强铁基复合材料的微观组织与磨损性能  

Microstructure and Wear Properties of VC Particle Reinforced Iron Matrix Composite

作　　者：郑向华[1] 

机构地区：[1]成都电子机械高等专科学校机电工程系,四川成都611730

出　　处：《热加工工艺》2012年第14期138-140,共3页Hot Working Technology

摘　　要：以钒铁粉、铁粉、石墨等为原料,原位反应合成了Fe-VC复合材料。采用扫描电镜(SEM)和MM-200型磨损试验机对所制备的试样进行组织结构分析与磨损试验。结果表明:当烧结温度为1180℃时,该复合材料的密度达到最大值;合成的硬质相VC颗粒细小,且在珠光体基体中均匀分布;在干滑动磨损条件下,该复合材料具有优异的耐磨性。Fe-VC composite was in-situ fabricated by ferrovanadium powder, iron powder and graphite powder. The microstructure of the composite was investigated by SEM, and the wear properties of the composite was examined by MM-200 test machine. The results show that the density of Fe-VC composite sintering at 1180 ℃achieves the maximum value. VC particles exhibit the fine size and homogeneous distribution in the pearlite matrix. Under the condition of dry sliding, Fe-VC composite can hold the great wear resistance.

关 键 词：复合材料 VC颗粒 微观组织 耐磨性 

分 类 号：TB333[一般工业技术—材料科学与工程]