铁蕨提取物对碳钢在盐酸中的缓蚀行为研究

陈文, 黄德兴, 韦奉

Inhibition Effect of Brainea Insignis Extract Against Carbon Steel Corrosion in HCl Solution

CHEN Wen, HUANG Dexing, WEI Feng

表3 Q235钢在不同浓度BIE的1 mol·L-1盐酸中的阻抗图谱拟合参数

Table 3 Fitting impedance parameters for Q235 steel in 1 mol·L-1 HCl containing different concentrations of BIE

CBIE / mg·L-1 Rs / Ω·cm2 Rct / Ω·cm2 CPEdl Cdl / μF·cm-2 IEEIS / % Y0×106 / Ω-1·cm-2·sn n Blank 1.83 9.6 474 0.846 178 --- 35 1.90 36.3 306 0.843 132 73.4 70 1.99 52.8 294 0.811 112 81.7 140 1.91 87.1 210 0.843 99 88.9 280 1.87 138.4 105 0.884 61 93.0 560 2.50 209.3 69 0.889 41 95.3