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Sweet Corrosion Inhibition on API 5L-B Pipeline Steel

机译:API 5L-B管线钢的抗甜腐蚀性能

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Corrosion inhibition and adsorption behavior of two triazole derivatives on API 5L-B carbon steel in CO2-saturated 3.5% NaCl solutions was investigated using potentiodynamic polarization, EIS, and EFM techniques. Specimen surfaces were characterized using SEM, EDX, and XRD. Results show that the two compounds are mixed-type inhibitors and inhibition efficiency increases with increasing concentrations. Adsorption of the two compounds chemisorption and obeys Langmuir adsorption isotherm. Activation energy and thermodynamic parameters were calculated. Surface analyses confirm the formation of iron nitrides on the metal surface which supports results obtained from previous techniques.
机译:使用电位动力学极化,EIS和EFM技术研究了两种三唑衍生物在API 5L-B碳钢上在CO2饱和的3.5%NaCl溶液中的腐蚀抑制作用和吸附行为。使用SEM,EDX和XRD对样品表面进行表征。结果表明这两种化合物是混合型抑制剂,并且抑制效率随浓度的增加而增加。两种化合物的化学吸附和服从Langmuir吸附等温线。计算了活化能和热力学参数。表面分析证实了在金属表面上形成氮化铁,这支持了从先前技术获得的结果。

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