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在873~1023 K保温10 h条件下对Ti6Al4V进行热氧化处理。采用X射线衍射仪,辉光光谱分析仪和光学显微镜分析热氧化层的特征。借助MFT-R4000往复式摩擦磨损试验机研究热氧化温度对Ti6Al4V耐磨性的影响。结果表明:Ti6Al4V表面的热氧化层均匀、连续;热氧化温度对氧化层的形成、表面硬度和耐磨性有显著影响;973 K获得的氧化层表面硬度最高,磨损失重最低,磨痕宽度最小,耐磨性能最好。
Ti6Al4V was thermally oxidized at 873 ~ 1023 K for 10 h. The characteristics of the thermal oxide layer were analyzed by X-ray diffractometer, glow spectrometer and optical microscope. The influence of thermal oxidation temperature on the wear resistance of Ti6Al4V was investigated by MFT-R4000 reciprocating friction and wear tester. The results show that the thermal oxidation layer on Ti6Al4V surface is uniform and continuous. The thermal oxidation temperature has a significant effect on the formation of oxide layer, surface hardness and wear resistance. The surface hardness of the oxide layer obtained by 973 K is the highest, the wear loss is the lowest, , The best wear resistance.