温度对5Cr钢在模拟油田高温高压环境中CO2 腐蚀行为的影响
赵国仙, 刘冉冉, 丁浪勇, 张思琦, 郭梦龙, 王映超

Effect of Temperature on CO2-inducedCorrosion Behavior of 5Cr Steel in a Simulated Oilfield Produced High-temperature and High-pressured Water
ZHAO Guoxian, LIU Ranran, DING Langyong, ZHANG Siqi, GUO Menglong, WANG Yingchao
表4 5Cr钢在70℃下浸泡不同时间后阻抗谱拟合结果
Table 4 Fitting parameters of EIS of 5Cr steel immersed at 70oC for different time

Time

d

Rs

Ω·cm2

Cf

μF·cm-2

Rt

Ω·cm2

Yf

S·s n ·cm-2

nf

Ydl

S·s n ·cm-2

ndl

Rc

Ω·cm2

00.70848.8826.61//1.026 × 10-40.6746627.2
11.01239.6163.10//1.140 × 10-40.70222136.0
31.39925.2362.71//2.191 × 10-40.72692384.0
712.545/59.442.811 × 10-40.70952.667 × 10-40.72865673.0
1210.320/59.613.020 × 10-40.75033.019 × 10-40.75045662.0
1411.200/70.804.242 × 10-40.77804.229 × 10-40.77905394.0