Abstract B-doped TiO2 coatings with different B:Ti molar ratios were produced on Ti6Al4V alloy by a sol-gel dip-coating in order to improve tribological and electrochemical properties of Ti6Al4V. The properties of films were evaluated by XRD, XPS, SEM, surface tension-meter, tribotester and EIS. The highest roughness and hardness were obtained from B:Ti molar ratio of 2:1 TiO2 thin-film. TiO2 and B-doped TiO2 improved the wear resistance. While the mean CoF of Ti6Al4V was 0.39, TiO2 films reduced CoF significantly. B-doped TiO2 showed higher wear resistance than substrate and TiO2-film. Corrosion resistance was enhanced by TiO2 and the increasing B molar ratio provided improvement. The surface state changed after coatings. While TiO2 film showed hydrophobic behavior, B-doped all films exhibited hydrophilic characteristics.

中文翻译：

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掺硼 TiO2 薄膜改善 Ti6Al4V 合金的结构、摩擦学和电化学性能

摘要 为了提高Ti6Al4V 的摩擦学和电化学性能，采用溶胶-凝胶浸渍法在Ti6Al4V 合金上制备了不同B:Ti 摩尔比的B 掺杂TiO2 涂层。通过XRD、XPS、SEM、表面张力仪、摩擦测试仪和EIS对薄膜的性能进行了评价。从 B:Ti 摩尔比为 2:1 的 TiO2 薄膜获得最高的粗糙度和硬度。TiO2和B掺杂的TiO2提高了耐磨性。虽然 Ti6Al4V 的平均 CoF 为 0.39，但 TiO2 薄膜显着降低了 CoF。B 掺杂的 TiO2 显示出比基材和 TiO2 薄膜更高的耐磨性。TiO2 增强了耐腐蚀性，并且 B 摩尔比的增加提供了改进。涂层后表面状态发生变化。虽然 TiO2 膜表现出疏水性，但 B 掺杂的所有膜都表现出亲水性。