香根草提取物对冷轧钢在盐酸溶液中的缓蚀作用

邓志华, 雷然, 张智勇, 杨维宇, 李向红

Corrosion Inhibition of Vetiver Extract on Steel in Hydrochloric Acid Environment

DENG Zhihua, LEI Ran, ZHANG Zhiyong, YANG Weiyu, LI Xianghong

表2 20 ℃时冷轧钢在不含和含有不同浓度VZE的1.0 mol/L HCl溶液中的动电位极化曲线拟合参数

Table 2 Fitting parameters of potentiodynamic polarization curves of the test steel in 1.0 mol/L HCl solutions containing different concentrations of VZE at 20 ℃

c / g·L-1 Ecorr / mV Icorr / μA·cm-2 -bc / mV·dec-1 ηp / % --- -484 443 122 --- 0.02 -454 148 129 44.7 0.10 -451 115 117 74.0 0.20 -447 101 101 77.2