热处理对铝合金2A12硬质阳极氧化膜粗糙度的影响
Effects of Heat Treatment on Roughness of Hard Anodic Oxide Film on 2A12 Alloy
邓丽虹, 魏晓伟, 杜全强, 严茂源
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作者单位：(西华大学 材料科学与工程学院, 四川 成都 610039)
中文关键字：硬质阳极氧化； 热处理； 铝合金2A12； 粗糙度； θ(CuAl2)相
英文关键字：hard anodizing; heat treatment; aluminum alloy 2A12; roughness; θ(CuAl2) phase
中文摘要：利用电炉、自制的硬质阳极氧化装置、扫描电镜、能谱分析、原子力显微镜和TR200粗糙度仪研究了热处理对硬质阳极氧化膜粗糙度的影响。结果表明：经固溶处理后，人工时效(T6)比自然时效(T4)后的基体表面粗糙；经化学抛光，基体表面粗糙度都降低；硬质阳极氧化后表面粗糙度都增加，且经T6处理后的表面粗糙度更大、增长更快；氧化时间约100 min时，粗糙度增长缓慢。
英文摘要：The effects of heat treatment on the roughness of hard anodic oxide film were studied by electric furnace, self-made hard anodizing equipment, scanning electron microscopy, energy disperse spectroscopy, atomic force microscope and TR200 roughness tester. The results show that, after solution treatment, the surface roughness of 2A12 alloy after artificial aging (T6) is bigger than that of natural aging (T4). By chemical polishing, the roughness of all samples reduce. After hard anodizing, surface roughness increases, the surface roughness of artificial aging (T6) is bigger and grows faster. When the oxidation time is about 100 min, the roughness grows slowly.