Electrochemical corrosion behavior of carbon steel under dynamic high pressure H2S/CO2 environment
Electrochemical corrosion behavior of carbon steel under dynamic high pressure H2S/CO2 environment
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DOI：
10.1016/j.corsci.2012.08.007
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发表时间：
2012-12
影响因子：
8.3
通讯作者：
G. Zhang;Y. Zeng;Xingpeng Guo;F. Jiang;D. Shi;Zhenyu Chen
中科院分区：
文献类型：
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作者：
G. Zhang;Y. Zeng;Xingpeng Guo;F. Jiang;D. Shi;Zhenyu Chen
通过实验装置的设计，采用原位电化学测量和失重法研究了碳钢在动态高压H2S/CO2环境下的电化学腐蚀行为。计算流体动力学（CFD）也被用来模拟流速和试样表面上的剪切应力。结果表明，阳极和阴极过程均为活化控制过程。阻抗谱具有双容抗谱特征。原位电化学测量与CFD模拟的试样表面流速和剪切应力一致。
Through the design of experimental setup, the electrochemical corrosion behavior of carbon steel under dynamic high pressure of H2S/CO2environment was studied by in situ electrochemical measurements and weight loss measurements. Computational fluid dynamics (CFD) was also performed to simulate the flow velocity and shear stress on specimen surface. The results show that both the anodic and cathodic processes are activation controlled. The impedance spectra are characterized by double capacitive semicircles. The in situ electrochemical measurements are in accordance with the CFD simulation of flow velocity and shear stress on the specimen surface.