菟丝子提取物与碘化钾对冷轧钢在盐酸中的缓蚀协同效应

吴浩, 邓书端, 李向红

Synergistic Inhibition Effect of Cuscuta Chinensis Lam Extract and Potassium Iodide on Cold Rolled Steel in Hydrochloric Acid

WU Hao, DENG Shuduan, LI Xianghong

表2 20 ℃时冷轧钢在1.0 mol/L HCl中CCLE和CCLE/KI作用下动电位极化参数

Table 2 Potential polarization parameters of cold rolled steel in 1.0 mol/L HCl solutions containing CCLE and CCLE+KI at 20 ℃

Inhibitor c / mg·L-1 Ecorr / mV -bc / mV·dec-1 ba / mV·dec-1 Icorr / μA·cm-2 ηp / % CCLE 0 -460 115 46 251 --- 10 -455 111 44 68 72.9 50 -462 127 54 55 78.1 100 -456 134 57 33 86.8 CCLE+10 mg/L KI 10 -452 116 45 35 86.1 50 -449 141 48 31 87.6 100 -455 140 56 29 88.4