以盐雾模拟海洋大气环境，对6061铝合金进行了盐雾腐蚀，研究腐蚀产物对6061铝合金腐蚀过程的影响。运用扫描电子显微镜（SEM）、电化学阻抗谱（EIS）以及光学轮廓测量技术（OP）分析了表面带腐蚀产物6061铝合金的电化学性能以及其腐蚀形貌。结果表明：6061铝合金表面的腐蚀产物对基体具有保护作用，但随着腐蚀时间的延长，腐蚀产物对基体的保护作用呈减弱趋势；在腐蚀过程中，6061铝合金的腐蚀以点蚀为主，腐蚀产物在点蚀扩展后期阻碍了点蚀坑的扩展，并促使点蚀逐步向均匀腐蚀转变。

6061 aluminium alloy was corroded in salt-spray as a simulated marine atmospheric environment to study the effect of corrosion products on the corrosion process of 6061 aluminium alloy. The electrochemical characteristics and corrosion morphology of 6061 aluminium alloy covered by corrosion products were analyzed by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and optical profilometry (OP). The results show that the corrosion product layer on the surface of 6061 aluminium alloy had a protective effect on the substrate, but the protective effect became weak with the increase of corrosion time. Pitting was the main form in the corrosion process of 6061 aluminium alloy. Corrosion products acted as a barrier to prevent the growth of pits, and promoted the transformation from pitting corrosion into uniform corrosion in the later stage of pitting corrosion.