文献类型：期刊文献

中文题名：碳钢在原油储罐沉积水中的电化学行为

英文题名：Electrochemical Behavior of Carbon Steel in Sedimentary Water from Crude Oil Storage Tank

作者：汪文强[1];曾为民[1];马玉录[1]

机构：[1]华东理工大学机械与动力工程学院承压系统安全科学教育部重点实验室,上海200237

年份：2014

卷号：35

期号：4

起止页码：373

中文期刊名：腐蚀与防护

外文期刊名：Corrosion & Protection

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；

语种：中文

中文关键词：沉积水;电化学;腐蚀机理;碳钢

外文关键词：sedimentary water;;electrochemistry;;corrosion mechanism;;carbon steel

摘要：采用极化曲线法研究了碳钢在原油储罐沉积水及其模拟环境中的腐蚀电化学行为,并研究了沉积水中的主要成分、温度、pH对碳钢腐蚀的影响。结果表明,温度升高促进碳钢的腐蚀。碳钢在中性条件下易钝化,pH升高使碳钢的腐蚀速率下降;Cl-的存在促进了碳钢的腐蚀。HCO3-和SO42-分别和Cl-混合成溶液时,前者加速碳钢腐蚀,而后者则减缓碳钢腐蚀。
Polarization curve method was used to explore the electrochemical behavior of carbon steel in sedimentary water on the floor of crude oil storage tank and its simulation environment,the effects of main ingredients of the sedimentary water,temperature and pH on the corrosion of carbon steel were studied.The results show that elevated temperature could promote the corrosion of carbon steel,the rate of corrosion was the lowest when pH was 7~8. The presence of Cl-could greatly contribute to the corrosion of carbon steel.HCO3-could accelerate corrosion of carbon steel and SO4 2-could slow down the rate of corrosion in their each mixed solution with Cl-.