5083铝合金与30CrMnSiA钢在不同Cl-浓度中电偶腐蚀行为的研究

刘泉兵, 刘宗德, 郭胜洋, 肖毅

Galvanic Corrosion Behavior of 5083 Al-alloy and 30CrMnSiA Steel in NaCl solutions

LIU Quanbing, LIU Zongde, GUO Shengyang, XIAO Yi

表5 5083铝合金阻抗谱拟合的等效电路参数

Table 5 Fitting equivalent circuit parameters of EIS of 5083 Al-alloy immersed for different time

Time d RsΩ·cm2 Yo,1S sn·cm-2·105 n1 RctΩ·cm2 Yo,2S sn·cm-2·10-3 n2 Yo,1S sn·cm-2·10-4 RfΩ·cm2 CbμF·cm-2 RbkΩ·cm2 CdlμF·cm-2 1 2.077 2.289 0.94 13390 1.15 0.72 --- --- --- --- --- 5 3.099 2.981 0.88 3100 17.66 0.92 --- --- --- --- --- 7 3.355 2.479 0.92 4317 2.93 0.45 --- --- --- --- --- 10 1.773 2.66 0.92 7060 1.67 0.62 --- --- --- --- --- 15 84.56 --- 0.55 2072 --- --- 1.703 339 294.5 22.52 378.8