WC-reinforced FeCoCrNi high entropy alloy (HEA) composite coatings with different WC morphology of spherical and irregular shape, were prepared by plasma cladding. The effects of WC morphology on carbide evolution, WC dissolution, and the wear resistance of the coatings were investigated. The results indicated that the evolution of the massive and fish-bone M₆C carbides were significantly influenced by the WC morphology, due to the different curvature radius of WC particles. The dissolution mechanism of spherical WC was diffusion, which of irregular WC was decarburization and oxidation. Although irregular WC particles were broken due to the WC→W₂C transformation, the wear resistance of the coating with irregular WC was relatively stable, only slightly lower than that of spherical WC, because the developed fish-bone carbide in HEA matrix resisted the three-body abrasive wear of broken WC and W₂C fragments.

通过等离子熔覆制备了WC增强的FeCoCrNi高熵合金（HEA）复合涂层，具有不同的WC形貌的球形和不规则形状。研究了WC形态对涂层碳化物析出，WC溶解和耐磨性的影响。结果表明，由于WC颗粒的曲率半径不同，块状和鱼骨状M ₆ C碳化物的演化受到WC形态的显着影响。球形WC的溶解机理为扩散，不规则WC的溶解机理为脱碳和氧化。尽管由于WC→W ₂破碎了不规则的WC颗粒C转变，不规则WC涂层的耐磨性相对稳定，仅略低于球形WC，因为在HEA基质中发达的鱼骨状碳化物可以抵抗破碎的WC和W ₂ C碎片的三体磨料磨损。