在含铜盐添加剂的硅酸钠系电解液中,采用微弧氧化(MAO)技术在AZ41镁合金表面原位生长MAO黑色陶瓷层。对黑色MAO陶瓷层的组成、表面形貌、颜色特征、耐腐蚀性以及摩擦磨损性能进行了分析。结果表明:制备的深色MAO陶瓷层的灰度值为48,表观颜色为黑色;深色膜层中含有Mg和Cu的氧化物,其中Cu的氧化物在黑色膜中起主要着色作用,并且MAO陶瓷层表面的大量微孔对光起到强烈的散射、吸收作用。黑色MAO陶瓷层的高阻抗和高硬度可有效提高AZ41镁合金的耐蚀和耐磨损性能,在3.5%(质量分数)Na Cl水溶液中的自腐蚀电位和自腐蚀电流密度分别比AZ41镁合金高0.39 V和低4个数量级。与Si C球对磨时,黑色陶瓷层对磨副的摩擦因数为0.62,大于AZ41镁合金的0.51,但磨损质量损失速率仅为AZ41镁合金的12.5%。 In the sodium silicate electrolyte containing copper salt additives, the MAO black ceramic layer was grown in situ on the surface of AZ41 magnesium alloy by micro-arc oxidation (MAO) technique. The composition, surface morphology, color characteristics, corrosion resistance and friction and wear properties of the black MAO ceramic layer were analyzed. The results show that the darkness of the prepared dark MAO ceramic layer is 48 and the apparent color is black. The dark film contains oxides of Mg and Cu, in which the oxide of Cu plays a major role in coloring the black film, And a large number of micropores on the surface of the MAO ceramic layer play a strong scattering, absorbing effect on the light. The high resistance and high hardness of black MAO ceramic layer can effectively improve the corrosion resistance and wear resistance of AZ41 magnesium alloy. The self-corrosion potential and self-corrosion current density in 3.5% (mass fraction) NaCl aqueous solution are respectively higher than AZ41 magnesium alloy High 0.39 V and low 4 orders of magnitude. Compared with Si C ball, the friction coefficient of black ceramic layer to the grinding pair is 0.62, which is larger than that of AZ41 magnesium alloy, but the loss rate of wear quality is only 12.5% ​​of AZ41 magnesium alloy.