摘要
采用极化曲线法和交流阻抗法研究了15#钢在H2S/CO2环境下的电化学行为。试验结果表明,H2S和CO2的存在加速了15#钢在NaCl溶液中的腐蚀速率,管线钢在NaCl溶液、NaCl-CO2溶液、NaCl-CO2-H2S溶液以及NaCl-H2S溶液中电化学反应过程所受的阻力愈来愈小,腐蚀电流密度越来越大,腐蚀速率越来越快。
The corrosion behavior of 15# steels in carbon and hydrogen sulfide solution was studied by the polarization curves and EIS. The result shows that the corrosion rate of 15# steel in NaCl solution has accelerated,when joined H2S and CO2, moreover, from the NaCl solution,NaCl -CO2 solution to the NaCl -CO2 -HES solution, then to NaCl- H2S solution, the electrochemical reaction process of resistance is getting smaller, the corrosion current density is bigger and the corrosive rate is faster.
出处
《压力容器》
北大核心
2011年第1期1-5,17,共6页
Pressure Vessel Technology
基金
国家自然科学基金资助项目(50771053)
关键词
15#钢
极化曲线
交流阻抗
H2S
CO2
15# steel
polarization curve
alternating current impedance
H2S
CO2
