The corrosion behaviors of pure aluminum, LY12 (AA2024) and LC4 (AA7075) in different accelerated localized corrosion solutions were studied using electrochemical impedance spectroscopy (EIS) and electrochemical noise (EN) techniques in conjunction with the scanning electron microscopy (SEM) and metalloscope. Some conclusions of this dissertation were drawn as follows:The high concentration of chloride ion in solution inhibits the repassivation of a metastable pit. The continuous oscillation of the electrod...