水下摩擦螺柱焊接头在饱和CO2中的电化学性能

戴婷, 顾艳红, 高辉, 刘凯龙, 谢小辉, 焦向东

Electrochemical Performance of Underwater Friction Stud Welding Joint in CO2 Saturated NaCl Solution

DAI Ting, GU Yanhong, GAO Hui, LIU Kailong, XIE Xiaohui, JIAO Xiangdong

表1 X65钢和FSW接头等效电路拟合结果

Table 1 Fitting electrochemical parameters of EIS of X65 steel and FSW joint

Corrosion time / h Test piece Rs / Ω·cm2 Rct / Ω·cm2 CPE 2 X65 6.621 454.60 2.94×10-4 FSW 13.970 460.90 2.52×10-4 4 X65 6.508 827.60 3.01×10-4 FSW 13.040 431.50 3.25×10-4 6 X65 6.501 299.00 2.51×10-4 FSW 11.990 452.30 3.15×10-4 8 X65 6.827 378.50 2.46×10-4 FSW 12.820 513.60 3.49×10-4