AZ91D镁合金和2002铝合金在0.5 mg/L NaCl溶液中的电偶腐蚀行为研究

刘泽琪, 何潇潇, 祁康, 黄华良

Galvanic Corrosion Behavior for Galvanic Couple of AZ91D Mg-alloy/2002 Al-alloy in 0.5 mg/L NaCl Solution

LIU Zeqi, HE Xiaoxiao, QI Kang, HUANG Hualiang

图1 30 ℃下0.5 mg/L NaCl溶液中AZ91D镁合金与2002铝合金的电位及电位差随时间的变化

Fig.1 Potential and potential difference of AZ91D Mg-alloy and 2002 Al-alloy with different time in 0.5 mg/L NaCl at 30 ℃: (a) potential at the beginning of 24 h, (b) potential of Mg-alloy at different soaking time under uncoupling and coupling conditions, (c) potential of Al-alloy at different soaking time under uncoupling and coupling conditions, (d) potential difference between Mg-alloy and Al-alloy at different soaking time under uncoupling and coupling conditions