【摘要】 研究了Mg-Mn合金的碱性阳极氧化工艺。分别采用SEM、XRD、电化学分析系统和维氏硬度计分析了试样的转化膜形貌、物相、耐蚀性以及膜厚和硬度。结果表明,转化膜由MgO2和Mg2MnO4构成;其形态特征与铝合金阳极氧化转化膜一样也呈多孔状,但孔径要大得多。经碱性阳极氧化后各主要性能均有明显提高。更多还原

【Abstract】 The processes of alkaline anodic oxidizing to prepare oxide films on Mg-Mn alloy were studied.The morphologies,surface phases,corrosion resistances,thickness and hardness of the films were analyzed by SEM,XRD,electrochemistry system and micro-hardness test respectively.The results indicate that the oxide conversion films are composed of MgO₂ and Mg₂MnO₄.The films show irregular porous structure,whose aperture are much larger than those anodized on Al alloy.Major properties of Mg-Mn alloy treated by alkaline anodic oxidizing are improved obviously.更多还原