The TiN coating and Ti/TiN multilayer coatings were successfully fabricated on Ti6Al4V alloy by multi-arc ion plating. The Ti/TiN multilayer coatings with a total thickness of 4.6 μm and the TiN coating were prepared with a thickness of 5.6 μm. The XRD results indicate that the TiN phase of Ti/TiN multilayer coatings has a face-centered cubic crystal with the strong preferred orientation of (111) while the TiN coating has the face-centered cubic crystal structure with a preferred orientation of (200). For TiN coating, the hardness is (27.5 ± 1.9) GPa, the load-bearing capacity is (19.0 ± 3.6) N. For Ti/TiN multilayer coating, the hardness is (26.8 ± 1.7) GPa and the load-bearing capacity is (60.4 ± 4.0) N. The Ti/TiN multilayer coatings have excellent tribocorrosion resistance and lower coefficient of friction in simulated body fluid at 37 °C, compared with Ti6Al4V alloy and TiN coating, the tribocorrosion resistance of the multilayer coatings increased by approximately 58 and two times, respectively. The material loss which arises from tribocorrosion is not simply the summation of pure corrosion and pure wear loss, the synergism between corrosion and wear takes a large proportion of the total volume loss.

通过多弧离子镀在Ti6Al4V合金上成功制备了TiN涂层和Ti / TiN多层涂层。制备总厚度为4.6μm的Ti / TiN多层涂层和TiN涂层，其厚度为5.6μm。XRD结果表明，Ti / TiN多层涂层的TiN相具有面心立方晶体，其择优取向为（111），而TiN涂层具有面心立方晶体结构，其择优取向为（200）。 。对于TiN涂层，硬度为（27.5±1.9）GPa，承重为（19.0±3.6）N.对于Ti / TiN多层涂层，硬度为（26.8±1.7）GPa，承重为（60.4±4.0）N。Ti/ TiN多层涂层在37°C的模拟体液中具有出色的抗摩擦腐蚀性能和较低的摩擦系数，与Ti6Al4V合金和TiN涂层相比，多层涂层的耐摩擦腐蚀性能分别提高了约58倍和2倍。由摩擦腐蚀引起的材料损失不仅是纯腐蚀和纯磨损损失的总和，腐蚀与磨损之间的协同作用在总体积损失中占很大比例。