静水压力对X70钢在海洋环境中腐蚀行为影响研究

林朝晖, 明南希, 何川, 郑平, 陈旭

Effect of Hydrostatic Pressure on Corrosion Behavior of X70 Steel in Simulated Sea Water

LIN Zhaohui, MING Nanxi, HE Chuan, ZHENG Ping, CHEN Xu

表2 X70钢在不同静水压力条件下的电化学阻抗拟合结果

Table 2 Fitting results of EIS of X70 steel under different hydrostatic pressures

P / MPa Rs / Ω·cm2 Qf / F·cm-2 n-Qf Rf / Ω·cm2 Qdl / F·cm-2 n-Qdl Rct / Ω·cm2 L / H·cm-2 RL / Ω·cm2 0 9.72 2.04×10-2 0.37 0.77 6.57×10-5 1 6.24 2.23×10-2 --- 1 9.69 2.61×10-2 0.32 0.90 5.39×10-5 1 6.10 2.31×10-2 --- 2 7.99 6.55×10-4 1.00 0.01 8.34×10-2 0.82 4.40 1.41×10-2 1.45 3 9.27 3.45×10-4 1.00 0.12 1.20×10-2 0.88 5.55 8.85×10-3 1.93