Corrosion behaviour of N80 carbon steel in formation water under dynamic supercritical CO2 condition
Corrosion behaviour of N80 carbon steel in formation water under dynamic supercritical CO2 condition
复制标题
动态超临界CO2条件下N80碳钢在地层水中的腐蚀行为
DOI：
10.1016/j.corsci.2017.02.012
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发表时间：
2017-05-15
影响因子：
8.3
通讯作者：
Guo, X. P.
中科院分区：
文献类型：
--
作者：
Zhang, G. A.;Liu, D.;Guo, X. P.
采用失重法、电化学测试和表面分析等方法研究了N80碳钢在动态超临界CO2-水环境中的腐蚀行为。结果表明，超临界CO2和非超临界CO2环境下的电化学腐蚀机理没有本质区别。动态条件下的腐蚀速率高于静态条件下的腐蚀速率，尤其是在腐蚀初期。动、静态条件下的阻抗谱在初期存在差异，但在后期没有差异。流动的流体阻碍了保护性腐蚀产物膜的形成，从而加快了腐蚀速率。(C)2017爱思唯尔有限公司版权所有
The corrosion behaviour of N80 carbon steel under dynamic supercritical CO2-water environment was studied by weight loss, electrochemical measurements, and surface analysis. It is demonstrated that there is no essential difference in the electrochemical corrosion mechanism under supercritical CO2 and non-supercritical CO2 environments. The corrosion rate under dynamic condition is higher than that under static condition, especially in the initial period. There is difference in the impedance spectra under dynamic and static conditions in the initial period, but no difference in the late period. Flow fluid hinders the formation of protective corrosion products film, and then increases the corrosion rate. (C) 2017 Elsevier Ltd. All rights reserved.