P110S油套管在微含硫环境中的腐蚀行为研究

万红霞, 刘重麟, 王子安, 刘茹, 陈长风

Corrosion Behavior of P110S Oil Casing Steel in Sulfur Containing Environment

WAN Hongxia, LIU Chonglin, WANG Zian, LIU Ru, CHEN Changfeng

表1 图6中电化学阻抗谱的拟合结果及极化曲线的拟合结果

Table 1 Fitting results of EIS in Fig.6 and fitting results of polarization curves

Solution / mol·L-1 Rs / Ω·cm2 Qf / F·cm2 Rf / Ω·cm2 Qct / F·cm2 Rct / Ω·cm2 Icorr / μA·cm-2 Ecorr / V 0.01 1.233 3.61×10-6 4.343 4.45×10-3 553.3 33.58 -0.7365 0.05 1.612 1.66×10-6 3.004 3.09×10-3 352.2 54.81 -0.7353 0.1 1.297 1.39×10-6 3.007 3.56×10-3 328.9 61.78 -0.7419