Abstract
The corrosion and pitting behavior of pure aluminum 1060 exposed to Nansha Islands marine atmosphere for 34 months was investigated based on mass loss measurement, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and electrochemical impedance spectroscopy (EIS). The results indicated that serious pitting corrosion occurred on the surfaces of pure aluminum. The corrosion rate after exposure for 13 months was approximately 1.28 g/(m2·a). The XPS results showed that the corrosion products were Al2O3, Al(OH)3, and AlCl3. Moreover, the corrosion product layer was more protective than the native oxide film, and the protectiveness first increased and then decreased. Finally, the shape of the pits was evaluated using statistical analysis.
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