WC particle-reinforced coating with high hardness and excellent wear resistance has been concerned extensively. In this paper, a method via powder core wire fed WC particle and TIG arc for manufacturing thicker WC particle-reinforced coatings was provided. The proportion of residual tungsten carbide particles in the coating and the degree of particle dissolution were worthy of attention. Energy per unit volume instead of line energy was used to represent heat input. By reducing the energy per unit volume, the proportion of residual tungsten carbide particles in the coating was increased while reducing the degree of dissolution of tungsten carbide particles. Besides, the crack resistance of the coating is also crucial. Ni and Nb elements were added to the core wire to improve the crack resistance of the coating. The dissolution behavior of tungsten carbide particles, phase composition, and the microstructure evolution of the coating was subsequently analyzed by SEM, EDS, and XRD. Finally, the hardness and wear resistance of the coating was tested, respectively.

具有高硬度和优异耐磨性的WC颗粒增强涂层受到广泛关注。在本文中，提供了一种通过粉芯焊丝送入 WC 颗粒和 TIG 电弧制造较厚 WC 颗粒增强涂层的方法。涂层中残留碳化钨颗粒的比例和颗粒溶解程度值得关注。单位体积的能量而不是线能量被用来表示热输入。通过降低单位体积能量，涂层中残留碳化钨颗粒的比例增加，同时降低碳​​化钨颗粒的溶解度。此外，涂层的抗裂性也很关键。在芯线中添加Ni和Nb元素以提高涂层的抗裂性。随后通过 SEM、EDS 和 XRD 分析了碳化钨颗粒的溶解行为、相组成和涂层的微观结构演变。最后，分别测试了涂层的硬度和耐磨性。