对于采用铸渗法制备的WC/球墨铸铁复合材料,通过电子探针与金相法分析合金元素的分布规律及显微组织形态,测试了其显微硬度.研究结果表明,表面复合层是由于在毛细作用下铁液被不断吸入合金层中,致使低熔点HT粉过热熔化而形成并与基体冶金结合.实际测试表明,该复合材料具有良好的抗磨损特性. For WC / ductile iron composites prepared by infiltration infiltration method, the microhardness of the WC / nodular cast iron composites was analyzed by electron probe and metallographic method, and the microhardness was tested.The results show that the surface composite layer is due to the capillary The molten iron is continuously drawn into the alloy layer, causing the low-melting point HT powder to melt and form with the metallurgy of the substrate, and the actual test shows that the composite material has good wear resistance characteristics.