采用分光光度计、扫描电镜等手段研究了混合稀土对阳极氧化6063合金的表面光学性能的影响.研究结果表明:在6063合金中加入0.2wt-％左右的混合稀土,合金的阳极氧化表面的反射率(对可见光)和明度提高,彩度和兴奋纯度降低;但稀土对其主波长和色调角度无明显影响.稀土的上述作用与其对合金阳极氧化膜的表面质量、形貌和微观结构的影响有密切的联系. The effect of mixed rare earth on the surface optical properties of anodized 6063 alloy was studied by means of spectrophotometer and scanning electron microscope.The results show that the addition of 0.2wt% mixed rare earth into 6063 alloy can improve the surface anodization of the alloy, (Visible light) and brightness increased, while the saturation and exciton purity decreased. However, rare earth did not affect its dominant wavelength and hue angle. The above effects of rare earth on the surface quality, morphology and microstructure of the anodic oxide film Closely linked.