等离子熔化-注射WC金属陶瓷层组织研究  

WC Metal Matrix Composite Produced by Plasma Melt Particle Injection

作　　者：赵敏海[1] 刘爱国[2] 郭面焕[2] 

机构地区：[1]哈尔滨理工大学机械动力学院,黑龙江哈尔滨150080 [2]哈尔滨工业大学现代焊接技术国家重点实验室,黑龙江哈尔滨150010

出　　处：《热处理技术与装备》2007年第5期17-20,共4页Heat Treatment Technology and Equipment

基　　金：黑龙江省教育厅项目资金资助(11521040)

摘　　要：采用等离子熔化-注射技术,在Q235钢表面制备WC-17%颗粒增强金属陶瓷复合层,利用扫描电镜(SEM)和X射线衍射仪(XRD)对金属陶瓷复合层进行组织形貌观察和分析,结果表明等离子熔化-注射技术制备的复合层与基体为冶金结合,复合层内WC颗粒分布均匀,没有明显的沉底现象,且在复合层上部还存在大量的块状组织,保留着陶瓷粉末颗粒的原始形状和尺寸,未发现裂纹。WC reinforced surface metal matrix composites （SMMCs） were produced with plasma melt injection （PMI） process. Microstructures of the SMMCs were observed using model S4700 scanning electron microscope （SEM）, and the composition was determined by energy dispersive spectroscopy （EDS）. In the middle and bottom parts of the cross section of the MMC layer, the carbides were mainly M6C primary carbides. In the top part, the injected WC particles did not dissolve into the base metal.

关 键 词：等离子熔化-注射 WC金属陶瓷复合层 组织结构 

分 类 号：TG148[一般工业技术—材料科学与工程]