| 模拟油气田环境中HP13Cr和N80油管钢的CO_2腐蚀行为 |
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| 引用本文： | 要玉宏,刘江南,王正品,金耀华,白真权.模拟油气田环境中HP13Cr和N80油管钢的CO_2腐蚀行为[J].腐蚀与防护,2011(5). |
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| 作者姓名： | 要玉宏 刘江南 王正品 金耀华 白真权 |
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| 作者单位： | 西安工业大学材料与化工学院;中国石油天然气集团公司管材研究所; |
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| 基金项目： | CNPC材料力学与环境行为重点试验室开放基金 |
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| 摘 要： | 采用电化学方法研究了HP13Cr和N80油管钢在含饱和CO_2的NaCl溶液中的腐蚀行为,结果表明,HP13Cr钢自腐蚀电位较N80钢低,自腐蚀电流密度较N80钢高;与N80钢相比,HP13Cr钢极化曲线的循环滞后环面积小,点蚀发生的程度低;HP13Cr钢的极化电阻高于N80钢的极化电阻,说明HP13Cr抗CO_2腐蚀能力强;当HP13Cr与N80组成电偶对时,两者的电偶电位均较其自腐蚀电位负移,且因电偶电流较大而不能偶接使用。
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| 关 键 词： | 自腐蚀电位 极化电阻 电化学阻抗谱 电偶腐蚀 |
CO_2 Corrosion Behavior of HP13Cr and N80 Steels in Simulated Oil and Gas Field Environment |
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| YAO Yu-hong,LIU Jiang-nan,WANG Zheng-pin,JIN Yao-hua,BAI Zhen-quan.CO_2 Corrosion Behavior of HP13Cr and N80 Steels in Simulated Oil and Gas Field Environment[J].Corrosion & Protection,2011(5). |
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| Authors: | YAO Yu-hong LIU Jiang-nan WANG Zheng-pin JIN Yao-hua BAI Zhen-quan |
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| Affiliation: | YAO Yu-hong~1,LIU Jiang-nan~1,WANG Zheng-pin~1,JIN Yao-hua~1,BAI Zhen-quan~2 (1.School of Materials and Chemical Engineering,Xi'an Technological University,Xi'an 710032,China,2.Tubular Goods Research Center of CNPC,Xi'an 710065,China) |
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| Abstract: | The corrosion behaviors of HP13Cr and N80 steels in NaCl solution containing carbon dioxide were investigated by electrochemical methods.The results showed that the corrosion potential of HP13Cr steel was lower than that of N80 steel and the corrosion current density was higher than that of N80 steel.The area of the cycle hysteresis loop in the polarization curves of HP13Cr steel was smaller than that of N80 steel,and indicated a lower propagation degree of pitting corrosion of HP13Cr.The resistance to CO_2... |
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| Keywords: | corrosion potential polarization resistance electrochemical impedance spectroscopy galvanic corrosion |
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