To improve the corrosion resistance of the Ti-6Al-4 V alloy treated by micro-arc oxidation (MAO), molybdenum disulfide (MoS₂) particles were added into the electrolyte and a composite oxide coating was formed with different MoS₂ contents on the surface of Ti-6Al-4 V alloy. A scanning electron microscope and a handheld roughness meter were used to analyze the surface morphology and roughness of the coating, and the corrosion performance of the MAO-treated Ti-6Al-4V alloy was analyzed by galvanic corrosion meter and electrochemical workstation. The results show that MoS₂ can be successfully incorperated into the coating and block the micropores during the process of micro-arc oxidation. Electrochemical experiments showed that the coating has a higher resistance and a lower corrosion rate, while in the galvanic experiment, the galvanic potential and galvanic current of the coating also decreased. Under the experimental conditions, the addition of MoS₂ can significantly improve the corrosion resistance of the MAO coating, and the best corrosion resistance is obtained when the addition amount is 4g/L, this will expand the marine applications of Ti-6Al-4 V alloy.

为提高经微弧氧化（MAO）处理的Ti-6Al-4 V合金的耐腐蚀性，在电解液中加入二硫化钼（MoS ₂ ）颗粒，在电解液表面形成不同MoS ₂含量的复合氧化物涂层。 Ti-6Al-4 V 合金表面。采用扫描电镜和手持式粗糙度仪对镀层的表面形貌和粗糙度进行分析，采用电偶腐蚀仪和电化学工作站对经MAO处理的Ti-6Al-4V合金的腐蚀性能进行分析。结果表明，MoS ₂在微弧氧化过程中可以成功地掺入涂层中并堵塞微孔。电化学实验表明，涂层具有更高的电阻和更低的腐蚀速率，而在原电池实验中，涂层的电势和电流也有所下降。实验条件下，MoS ₂的添加可显着提高MAO涂层的耐蚀性，添加量为4g/L时耐蚀性最佳，这将扩大Ti-6Al-4 V的海洋应用合金。