酸洗致基板表面状态变化对镀锡板耐蚀性的影响

赖漾, 徐清亮, 罗群, 李谦

Effect of Pickling-induced Surface Changes of Steel Substrate on Corrosion Resistance of Tinplate

LAI Yang, XU Qingliang, LUO Qun, LI Qian

表3 电化学阻抗谱的拟合电化学参数

Table 3 Electrochemical parameters fitted from electrochemical impedance spectroscopy

Sample Rs / Ω·cm2 Qm-Y0 / Ω-1·cm-2·s-n1 Qm-n Rm / Ω·cm2 Qdl-Y0 / Ω-1·cm-2·s-n1 Qdl-n Rct / Ω·cm2 Cf / F·cm-2 R-EP 6.60 8.81 × 10-6 0.88 2.28 × 106 7.31 × 10-6 0.82 4.59 × 103 1.33 × 10-5 R-CP 6.49 1.16 × 10-5 0.87 1.48 × 106 8.58 × 10-6 0.83 2.97 × 103 1.76 × 10-5 B-EP 6.99 7.90 × 10-6 0.90 3.84 × 106 2.39 × 10-5 0.74 3.45 × 102 1.13 × 10-5 B-CP 6.53 7.77 × 10-6 0.89 3.23 × 106 1.41 × 10-5 0.76 4.49×102 1.13 × 10-5