Abstract In this work, a duplex treatment of laser surface texturing (LST)-thermal oxidation (TO) was conducted on Ti6Al4V alloy to improve its mechanical property and wear performance. Microstructure, bonding strength, microhardness and nanoindentation behavior of the TO-Ti6Al4V were characterized. A comparative appraisal of wear performance for related samples of original Ti6Al4V, LST-Ti6Al4V, TO-Ti6Al4V and duplex treated-Ti6Al4V (DT-Ti6Al4V) were performed under dry sliding condition. The results revealed that gradient titanium oxide coatings with a thickness of 17 μm were in situ fabricated on the surface of Ti6Al4V and textured Ti6Al4V. The content of O displayed a gradient distribution across the TO-coating. TO treatment has improved the surface hardness and elasticity modulus of the Ti6Al4V. The specific wear rate of the samples was sorted in the following sequence: DT-Ti6Al4V

中文翻译：

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在激光表面织构的 Ti6Al4V 合金上原位制备梯度氧化钛陶瓷涂层以提高机械性能和磨损性能

摘要 在这项工作中，对 Ti6Al4V 合金进行了激光表面纹理化 (LST)-热氧化 (TO) 双重处理，以提高其机械性能和磨损性能。表征了TO-Ti6Al4V的显微组织、结合强度、显微硬度和纳米压痕行为。在干滑动条件下对原始Ti6Al4V、LST-Ti6Al4V、TO-Ti6Al4V和双相处理-Ti6Al4V（DT-Ti6Al4V）相关样品的磨损性能进行了对比评价。结果表明，在 Ti6Al4V 和织构的 Ti6Al4V 表面原位制备了厚度为 17 μm 的梯度氧化钛涂层。O 的含量在整个 TO 涂层上显示出梯度分布。TO处理提高了Ti6Al4V的表面硬度和弹性模量。