凤眼莲提取物在Cl2CHCOOH溶液中对钢的绿色缓蚀及界面行为评估

江成, 魏高飞, 蒲美婷, 徐娟, 李向红, 邵丹丹

Corrosion Inhibition and Interface Behavior of Eichhornia Crassipes Extract on Steel in Cl2CHCOOH Solution

JIANG Cheng, WEI Gaofei, PU Meiting, XU Juan, LI Xianghong, SHAO Dandan

表2 30 ℃时冷轧钢在不含和含有不同浓度ECE在0.1 mol·L-1 DCA溶液中的动电位极化曲线拟合参数

Table 2 Potentiodynamic polarization curve fitting parameters of cold rolled steel in solutions without and with different concentrations of ECE in 0.1 mol·L-1 DCA at 30 ℃

c / mg·L-1 Ecorr / mV vs. SCE Icorr / μA·cm-2 -bc / mV·dec-1 ba / mV·dec-1 fc fa fa / fc ηp / % 0 -449.4 27 50 33 - - - - 10 -436.6 6.98 25 23 0.5 0.47 0.94 74.1 50 -435.9 5.49 23 17 0.39 0.28 0.71 79.6 100 -438.6 2.95 17 14 0.24 0.18 0.85 89