Abstract In this study, the titanium grade 2 surface was modified by the thermal oxidation process, generating an oxide layer that protects the material, to improve its tribological properties and increase the Vickers hardness values. For the thermal oxidation process, titanium was subjected to different oxidation temperatures, 750, 800, 825 and 850 °C for 2 h. It was observed that titanium at 750 °C showed the best results, obtaining a hardness value of up to 11.35 GPa, 5 times more than titanium without changing its surface. Likewise, the values of friction coefficient and wear rate of 0.53 and 4.27x10-5 mm3/Nm respectively showed better wear resistance. Residual stresses and crystallite size were found to have a greater impact on the properties of TiO2 coatings compared to increased thickness.

中文翻译：

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不同温度下使用热氧化工艺分析2级钛的硬度和摩擦学性能

摘要 在这项研究中，钛 2 级表面通过热氧化工艺进行了改性，生成了一层保护材料的氧化层，以改善其摩擦学性能并提高维氏硬度值。对于热氧化过程，钛经受不同的氧化温度，750、800、825 和 850 °C 2 小时。据观察，钛在 750 °C 下表现出最好的结果，获得高达 11.35 GPa 的硬度值，是钛的 5 倍，而不会改变其表面。同样，摩擦系数和磨损率分别为 0.53 和 4.27x10-5 mm3/Nm 的值显示出更好的耐磨性。发现与增加的厚度相比，残余应力和微晶尺寸对 TiO2 涂层的性能有更大的影响。