中文摘要：

采用直流电弧等离子体气相蒸发法,在氢气与氮气混合气氛中蒸发块体Ti金属制备TiN单晶纳米颗粒,以此纳米颗粒为添加粒子,利用电刷镀方法制备出（Ni-P）-TiN纳米微粒复合镀层。对纳米颗粒及其复合镀层进行了物相结构、表面形貌及微观组织分析,并测试了镀层显微硬度和耐磨性能。研究结果表明：TiN纳米颗粒具有立方晶体结构,（Ni-P）-TiN纳米微粒复合镀层的硬度较普通Ni-P合金镀层提高近3倍,耐磨性能也有显著提高。

英文摘要：

TiN monocrystal nanoparticles were prepared with metallic Ti evaporation in a mixture atmosphere of nitrogen and hydrogen under DC arc plasma. And then （Ni-P） -TiN nanoparticles composite coating was prepared by brush electroplating method with the addition of the TiN nanoparticles dispersed in the （Ni-P） plating solution. Surface morphology,phase composition and texture of the TiN nanoparticle and the （Ni-P） -TiN nanoparticle composite coating were analyzed. Micro-hardness and wear resistance of the composite coating were also tested. The results showed that the prepared TiN nanoparticles were in cubic crystal form. Hardness of the （Ni-P） -TiN nanoparticles composite coating was increased 3 times as compared to that of common （Ni-P） alloy coating. The wear resistance of the composite coating was also increased remarkably.