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2 动电位极化曲线的拟合电化学参数

Table 2 Fitted electrochemical parameters from potentiodynamic polarization curves.

Sample Ecorr vs. SCE / V Icorr / A·cm-2 βa / V·dec-1 βc / V·dec-1 Rp / Ω·cm2 R-EP -0.54 9.15 × 10-9 0.44 0.25 7.64 × 106 R-CP -0.55 1.31 × 10-8 0.43 0.27 5.48 × 106 B-EP -0.67 4.21 × 10-9 0.40 0.22 1.49 × 107 B-CP -0.69 5.06 × 10-9 0.40 0.23 1.26 × 107