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6 30CrMnSiA钢阻抗谱拟合的等效电路参数

Table 6 Fitting equivalent circuit parameters of EIS of 30CrMnSiA steel immersed for different time

Time d RsΩ·cm2 CdlμF·cm-2 RfΩ·cm2 Yo,1S sn·cm-2·10-4 n1 RctΩ·cm2 1 4.187 565.9 50 9.30 0.75 1311 5 8.539 415.5 108.7 41.23 0.79 3003 7 9.151 555.3 26.39 74.45 0.75 2483 10 1.675 387.6 13.72 45.52 0.71 2135 15 1.675 844.3 13.41 121.9 0.72 1871