The poor tribological performances of titanium alloy as bone implants have important influence on its implantation failure. In this study, hydroxyapatite (HA) coating and Fe₃O₄ covered with HA (Fe₃O₄/HA) coating were respectively prepared on the Ti6Al4V alloy surface by chemical self-assembly. The tribological properties under dry and SBF (Simulated Body Fluid) lubrications and anticorrosion properties in SBF solution were systematically measured. The corresponding mechanisms were discussed. These results show that the Fe₃O₄/HA coating has more positive effect on reducing the friction coefficient and wear rates than HA coating, might due to the transformation of sliding friction into rolling friction. Furthermore, the enhanced anticorrosion properties from Fe₃O₄/HA coating were attributed to its shielding effect on the active ions of the solution.

钛合金作为骨植入物的摩擦学性能较差，对其植入失败有重要影响。本研究通过化学自组装在Ti6Al4V合金表面分别制备了羟基磷灰石(HA)涂层和覆盖HA(Fe ₃ O _{4 /HA)涂层的Fe 3} O _{4 。}系统测量了干润滑和SBF（模拟体液）润滑下的摩擦学性能和SBF溶液中的防腐性能。讨论了相应的机制。这些结果表明，Fe ₃ O ₄ /HA 涂层对降低摩擦系数具有更积极的作用。和磨损率比 HA 涂层，可能是由于滑动摩擦转化为滚动摩擦。此外，Fe ₃O₄/HA 涂层增强的防腐性能归因于其对溶液中活性离子的屏蔽作用。