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20钢和16Mn钢在模拟CO2驱环境的腐蚀电化学行为

Chuan TA,Zhi-gang YANG,Zhi-fu YIN,Yong-qiang ZHANG,Ke WANG,Wei-bo WANG, Tian-qi YANG

Science Technology and Engineering（2019）

Cited 2|Views6
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Abstract
为提供CO2驱油环境中地面管线钢的选材依据, 通过动电位极化曲线和交流阻抗谱研究了20钢、16Mn钢在模拟CO2驱溶液中的腐蚀电化学行为, 并对数据进行了拟合分析.结果表明:在饱和CO2条件下, 20钢在低温阶段易形成具有保护性的产物膜, 而随着温度逐渐升高, 产物膜变的疏松, 腐蚀加剧; 16Mn钢在中低温阶段, 随着温度的升高, 腐蚀加剧, 饱和的CO2极大地促进了腐蚀的发生.
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Key words
20 steel,16Mn steel,CO2 corrosion,potential polarization,alternating current impedance
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