CO_2环境中P110钢阳极溶解过程EIS特征

李静; 孙冬柏; 俞宏英; 李辉勤; 孟惠民; 杨德钧

doi:10.61558/2993-074X.3244

电化学 >

2001 , Vol. 7 >Issue 1: 120 - 125

DOI: https://doi.org/10.61558/2993-074X.3244

研究论文

CO_2环境中P110钢阳极溶解过程EIS特征

李静 ,
孙冬柏 ,
俞宏英 ,
李辉勤 ,
孟惠民 ,
杨德钧

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北京科技大学材料科学与工程学院腐蚀与防护中心!北京100083,北京科技大学材料科学与工程学院腐蚀与防护中心!北京100083,北京科技大学材料科学与工程学院腐蚀与防护中心!北京100083,北京科技大学材料科学与工程学院腐蚀与防护中心!北京100083,北京科技大学材料科学与工程学院

收稿日期: 2001-02-28

修回日期: 2001-02-28

网络出版日期: 2001-02-28

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EIS Characteristics of Anodic Dissolution for P110 Steel under CO_2 Environment

LI Jing  ,
SUN Dong bai ,
YU Hong ying ,
MENG Hui min ,
LI Hui qin ,
YANG De jun

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(Corrosion and Protection Center, School of Material Science and Engineering, University of Science and Technology Beijing 10083) LU Min?xu, YAN Mi lin, ZHAO Guo xi

Received date: 2001-02-28

Revised date: 2001-02-28

Online published: 2001-02-28

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摘要

研究了P110油管钢在CO2 饱和的模拟油田采出液中 ,阳极极化下的EIS谱随温度的变化规律 .结果表明 :在低于 90℃的范围内 ,存在一个谱图转变临界温度 ,临界温度之下为三个时间常数型谱图 ,临界温度之上为两个时间常数型谱图 .从阳极反应机理和CO2 腐蚀特征出发对试验结果进行了解释 .

关键词： CO_2腐蚀; 电化学阻抗; P110钢; 阳极极化

本文引用格式

李静 , 孙冬柏 , 俞宏英 , 李辉勤 , 孟惠民 , 杨德钧 . CO_2环境中P110钢阳极溶解过程EIS特征[J]. 电化学, 2001 , 7(1) : 120 -125 . DOI: 10.61558/2993-074X.3244

Abstract

Effect of temperature on the electrochemical impedance spectroscopy for P110 steel at anodic polarized potential was investigated in simulated CO 2 saturated oil produced water. The results demonstrated that in the range from room temperature to 90 ℃, there was a critical temperature , below which a three time constant impedance spectrum was observed and above which a two time constant spectrum was shown. A reasonable explanation was given to this phenomenon in an effort to elucidate the mechanism of anodic dissolution and characteristics of CO 2 corrosion.

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