CO2环境下油酸咪唑啉对X65钢异种金属焊缝电偶腐蚀的抑制作用研究

伊红伟, 胡慧慧, 陈长风, 贾小兰, 胡丽华

Corrosion Behavior and Corrosion Inhibition of Dissimilar Metal Welds for X65 Steel in CO2-containing Environment

YI Hongwei, HU Huihui, CHEN Changfeng, JIA Xiaolan, HU Lihua

表4 EIS等效电路拟合参数

Table 4 Fitting parameters of EIS equivalent circuits

Material Concentration / μL·L-1 Rs / Ω·cm2 Rct / Ω·cm2 Cdl / 10-4 F·cm-2 X65 Blank 14.74 292.48 2.588 30 11.42 2821 1.938 50 14.13 3392 1.581 X65/X65 Blank 16.42 757.2 2.136 30 20.11 1012 2.134 50 20.11 1627.04 0.02797 X65/316L Blank 27.56 728.7 2.359 30 9.459 1357 1.804 50 12.82 5464 1.25 X65/Inconel 625 Blank 29.82 906.1 2.961 30 13.68 1147 2.54 50 12.25 2101 1.243