在电解液中加入Cr2O3微粒对Ti6Al4V合金进行微弧氧化处理,通过SEM、XRD及摩擦试验分析Cr2O3微粒复合对微弧氧化膜微观结构及摩擦磨损行为的影响.结果表明:加入Cr2O3微粒后,复合膜表面孔隙减少,耐磨性提高,膜层中出现了Cr2O3相.随着电解液中Cr2O3微粒的增加,复合膜厚度增加,Cr2O3相衍射峰不断增强,TiO2相逐渐减少,Al2TiO5相趋于消失.在0.5～1.5 g/L内,复合膜的摩擦系数随Cr2O3微粒的增加而减小;加入量为1.5 g/L Cr2O3微粒时,复合膜的耐磨性最好.
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