花生壳提取物对冷轧钢在盐酸溶液中的缓蚀作用及机理

仇莉, 李向红, 雷沙, 郭崎, 邓书端

Corrosion Inhibition of Peanut Shell Extract on Cold Rolled Steel in Hydrochloric Acid Solution

QIU Li, LI Xianghong, LEI Sha, GUO Qi, DENG Shuduan

表5 20 ℃时CRS在1.0 mol/L HCl溶液中含不同浓度PSE的极化拟合参数

Table 5 PDP parameters of CRS electrode in 1.0 mol/L HCl solution with various PSE concentrations at 20 ℃

c / mg·L-1 Ecorr / mV vs SCE Icorr / μA·cm-2 bc / mV·dec-1 ba / mV·dec-1 ηP / % SD 0 -0.44 342 -114 93 20 -0.43 208 -137 86 39.2 2.0 100 -0.45 103 -142 86 69.9 3.7 200 -0.45 68 -149 101 80.1 4.2