<strong>2024</strong>铝合金在模拟动态海水<strong>/</strong>大气界面环境中的局部腐蚀机制

2024铝合金在模拟动态海水/大气界面环境中的局部腐蚀机制

夏大海, 计元元, 毛英畅, 邓成满, 祝钰, 胡文彬

Localized Corrosion Mechanism of 2024 Aluminum Alloy in a Simulated Dynamic Seawater/Air Interface

XIA Dahai, JI Yuanyuan, MAO Yingchang, DENG Chengman, ZHU Yu, HU Wenbin

图4 2024铝合金在水气界面和全浸区的电化学等效电路模型

Fig.4 Electrochemical equivalent circuit of 2024 aluminum alloy in seawater/air interfacial region and full immersion region ( $R_{e}$ —the electrolyte resistance; $C_{d l}$ —the capacitance of the double electric layer; $Z_{F, O_{2}}$ —the Faradaic resistance of oxygen reduction at oxide/electrolyte interface; $R_{o x, i}$ —the resistance of cation vacancies moving in the oxide; $R_{o x, e}$ —the resistance of electrons moving in the oxide)