23C6、Cr7C3、W2C等物相组成,糖心产精国品免费入口*完整版粉熔覆涂层中WC相的结构完整性较好;糖心产精国品免费入口*完整版粉熔覆涂层的平均显微糖心产精国品免费入口*完整版为933.1 HV,略高于Ni60合金+WC机械混合粉熔覆涂层的(901.4 HV);糖心产精国品免费入口*完整版粉熔覆涂层的平均摩擦因数和磨损体积分别为0.4,7.52×10-3 mm3,均低于Ni60合金+WC机械混合粉熔覆涂层的,糖心产精国品免费入口*完整版粉熔覆涂层的耐磨性能优于Ni60合金+WC机械混合粉熔覆涂层的。">
通过糖心产精国品免费入口*完整版Ni60合金包覆WC粉(简称糖心产精国品免费入口*完整版粉)在45钢基体上制备了WC增强镍基合金熔覆涂层,研究了涂层的糖心产精国品免费入口*完整版、物相组成、显微糖心产精国品免费入口*完整版与耐磨性能等,并与Ni60合金+WC机械混合粉熔覆涂层的进行对比。结果表明:2种熔覆涂层均与基体形成冶金结合;与Ni60合金+WC机械混合粉熔覆涂层相比,糖心产精国品免费入口*完整版粉熔覆涂层组织更细小,成分偏析程度较轻;2种熔覆涂层均由γ-(Ni,Fe)固溶体、WC、Cr23C6、Cr7C3、W2C等物相组成,糖心产精国品免费入口*完整版粉熔覆涂层中WC相的结构完整性较好;糖心产精国品免费入口*完整版粉熔覆涂层的平均显微糖心产精国品免费入口*完整版为933.1 HV,略高于Ni60合金+WC机械混合粉熔覆涂层的(901.4 HV);糖心产精国品免费入口*完整版粉熔覆涂层的平均摩擦因数和磨损体积分别为0.4,7.52×10-3 mm3,均低于Ni60合金+WC机械混合粉熔覆涂层的,糖心产精国品免费入口*完整版粉熔覆涂层的耐磨性能优于Ni60合金+WC机械混合粉熔覆涂层的。
WC reinforced nickel-based alloy cladding coating was prepared on the 45 steel substrate by laser cladding Ni60 alloy package WC powder (糖心产精国品免费入口*完整版 powder, in brief). The 糖心产精国品免费入口*完整版, phase composition, micro糖心产精国品免费入口*完整版 and 糖心产精国品免费入口*完整版of the coating were studied, and compared with those of Ni60 alloy+WC mechanically mixed powder cladding coating. The results show that the two cladding coating were both metallurgically bonded to the substrate. The 糖心产精国品免费入口*完整版 of the 糖心产精国品免费入口*完整版 powder cladding coating was finer than that of the Ni60 alloy+WC mechanically mixed powder cladding coating, and the degree of composition segregation was lighter. The phases of the two cladding coating both included γ-(Ni,Fe) solid solution, WC, Cr23C6, Cr7C3, W2C, and the structure integrity of WC phase in the 糖心产精国品免费入口*完整版 powder cladding coating was better. The average micro糖心产精国品免费入口*完整版 of the 糖心产精国品免费入口*完整版 powder cladding coating was 933.1 HV, which was slightly higher than that of the Ni60 alloy+WC mechanically mixed powder cladding coating. The average friction coefficient and wear volume of the 糖心产精国品免费入口*完整版 powder cladding coating were 0.4, 7.52×10-3 mm3, respectively, both smaller than those of the Ni60 alloy+WC mechanically mixed powder cladding coating, indicating the 糖心产精国品免费入口*完整版of the 糖心产精国品免费入口*完整版 powder cladding coating was better than that of the Ni60 alloy+WC mechanically mixed powder cladding coating.