摘要
采用机械合金化和放电等离子体法(MA-SPS)制备了WC颗粒增强钢基复合材料,对复合材料的组织形貌、耐磨性及耐磨机理进行研究。结果表明:该方法改善了复合材料的组织形貌,晶粒比较细小且均匀;同时显著提高了材料的硬度和耐磨性,随WC含量的增加,复合材料的致密度、硬度和耐磨性增加,最高硬度达70 HRC,相比基体材料的耐磨性提高了8倍;该材料的主要磨损机制为粘着磨损和磨粒磨损。
WC particulate reinforced steel matrix composite was prepared by MA-SPS （mechanical alloying and spark plasma sintering）. The morphology, wear resistance and wear mechanism of the composite were studied. The results indicate that the method significantly improves the morphology. The size and distribution of the grain is very small and uniform, respectively. With the increase of WC content, the relative density, hardness and wear resistance of the composite increase. The maximum hardness is up to 70 HRC and the highest wear resistance of the composite is 8 times higher than that of the steel matrix. The main wear mechanism is adhesive wear and abrasive wear.
出处
《热加工工艺》
CSCD
北大核心
2011年第6期78-81,共4页
Hot Working Technology
基金
国家自然科学基金资助项目(50774035)
