测试了不同粒度碳化钨和基体材料的铸渗层的耐滑动磨损性能、抗磨料磨损性能和抗冲蚀性能，分析了不同磨损条件下铸渗碳化钨复合层的耐磨机理和失效方式。研究结果表明，铸渗碳化钨复合层在各种磨损条件下耐磨机理和失效方式不同，要根据不同使用条件合理采用和制定碳化钨复合层的铸渗工艺 The sliding wear resistance, abrasion resistance and erosion resistance of infiltrated layers with different grain sizes of tungsten carbide and matrix were tested. The wear resistance and failure modes of the cast tungsten carbide composite under different wear conditions were analyzed. The results show that the wear resistance and failure modes of the cast cemented tungsten carbide composite under different wear conditions are different. It is necessary to reasonably adopt and formulate the infiltration and infiltration process of the tungsten carbide composite under different conditions of use