【摘要】 以高铬钢为基材,WC颗粒为增强颗粒,利用真空实型铸渗法(V-EPC)制备WC颗粒增强钢基表层复合材料,分析了相对厚度对制备表层复合材料厚度和组织的影响。通过光学显微镜、扫描电镜和显微硬度计等对表层复合材料进行了观察和分析。结果表明:利用V-EPC法能制备出WC颗粒增强钢基表层复合材料;随着相对厚度的增加,制备该复合材料的过渡层厚度逐渐增加,复合层厚度逐渐减小;WC颗粒与基体的结合强度逐渐增加。更多还原

【Abstract】 Taking a high-chromium steel as substrate,WC particles as enhanced particles,using the way of the V-EPC infiltration,which were used to make WC-particle reinforced steel-based metal matrix composite.The effects of thickness and microstructure on relative thickness of the composite material were investigated.The microstructure of surface composite was observed by SEM,EDS and OM.The results show that using V-EPC can prepare WC particle reinforced steel-based surface composite.With the increase in the relative thickness of WC particle reinforced steel matrix composite,the thickness of transition layer increases,and the compound layer thickness decreases,then WC particle and the bonding strength increase.更多还原