中文摘要：

对铝及其合金进行钝化处理是提高其耐蚀性的有效手段.研究了工业纯铝普通阳极氧化膜在不同温度钝化液（Alsur408）条件下处理的表面形貌、组织结构、厚度和耐腐蚀性规律.结果表明,阳极氧化的工业纯铝氧化膜表面有均匀的纳米级孔洞,经不同条件钝化后,在氧化膜表面生成钝化膜,厚度约为1μm;随着钝化温度增加,钝化膜逐渐增厚,表面形貌致密平整;当钝化液温度高于50℃时,表面裂纹明显,耐腐蚀性表现为先增强后减弱;当钝化液温度为40℃时,钝化膜表面平整致密,无微裂纹,自腐蚀电位为0.1V,耐腐蚀性最高.

英文摘要：

Passivation is an effective technique to improve the anti-corrosion of aluminum alloys.The effect of the passivation temperature on surface morphology,structure,thickness and anti-corrosion of aluminum oxidized films was investigated.It was found that there were many uniform nano-holes on the surface of aluminum oxidized films.With passivation treatment,passivation films of about 1μm thickness were formed on the surface.The thickness of the passivation film increased with the passivation temperature.But when the temperature exceeded 50 ℃,surface cracks were observed.The film formed at the optimal passivation temperature of 40℃ was smooth and compact without microcracks and had 0.1Vself corrosion potential and the optimal corrosion resistance.