| 温度和硫离子对N80钢CO2腐蚀电化学行为影响 |
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| 引用本文： | 李金波,左剑恶.温度和硫离子对N80钢CO2腐蚀电化学行为影响[J].腐蚀科学与防护技术,2009,21(1):44-47. |
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| 作者姓名： | 李金波 左剑恶 |
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| 作者单位： | 清华大学,环境科学与工程系,北京,100084 |
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| 摘 要： | 应用电化学阻抗谱、EIS扫描电镜(SEM)及能谱（EDS）研究了温度和硫离子交互作用下，N80钢的CO2腐蚀电化学行为及腐蚀膜的形貌与组成.结果表明：温度和硫离子对N80钢CO2腐蚀电化学行为影响显著；硫离子加入后试样表面吸附着一层腐蚀膜；随着油田地层水中S2-浓度的增加，传递电阻R1、膜电阻R2及扩散阻抗W增加，膜电容Q2减小；腐蚀膜主要由FeS及少量FeCO3组成;其致密性随硫离子含量增加和温度升高而增强.
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| 关 键 词： | 电化学阻抗谱（EIS） 硫离子 交互作用 N80钢 CO2腐蚀 |
| 收稿时间： | 2008-04-18 |
| 修稿时间： | 2008-07-10 |
INFIUENCE OF TEMPERATURE AND SULFUR ION ON CARBON DIOXIDE CORROSION BEHAVIOR OF N80 STEEL |
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| LI Jin-bo,ZUO Jian-e.INFIUENCE OF TEMPERATURE AND SULFUR ION ON CARBON DIOXIDE CORROSION BEHAVIOR OF N80 STEEL[J].Corrosion Science and Protection Technology,2009,21(1):44-47. |
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| Authors: | LI Jin-bo ZUO Jian-e |
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| Affiliation: | Department of Environmental Science and Engineering;Tsinghua University |
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| Abstract: | The joint effect of temperature and sulfur ion on the carbon dioxide corrosion behavior of N80 steel was investigated by electrochemical impedance spectra(EIS).The microstructure and composition of the corrosion scale was observed and analyzed by scanning electron microscopy(SEM) and energy despersive spectra(EDS).The results showed that temperature and sulfur ion have significant effect on the corrosion behavior of N80 steel.With the addition of sulfur ion,the sample surface was covered by a corrosion scal... |
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| Keywords: | electrochemical impedance spectra(EIS) sulfur ion joint effect N80 steel CO2 corrosion |
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