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首页> 外文期刊>Corrosion Engineering, Science and Technology >Kinetic study of effect of amine based corrosion inhibitor in reducing corrosion rate of 1018 carbon steel in seawater solution
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Kinetic study of effect of amine based corrosion inhibitor in reducing corrosion rate of 1018 carbon steel in seawater solution

机译：胺基缓蚀剂降低海水中1018碳钢腐蚀速率的动力学研究

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摘要

The effect of an amine based inhibitor (CORTRON AR-505) on the corrosion of 1018 carbon steel in seawater was studied using weight loss, adsorption isotherm analysis, polarisation resistance and potentiodynamic polarisation techniques. AR-505 is adsorbed on the steel surface according to the Shawabkeh-Tutunji adsorption isotherm equation. A maximum adsorption capacity of 0.097 mg AR-505 was obtained to cover a monolayer of adsorption. Corrosion kinetics illustrated that inhibition efficiency has increased with increasing inhibitor concentration and solution pH, while it decreased with increasing solution temperature and stirring speed. Polarisation data fitted by the Butler-Volmer equation showed that the values of anodic and cathodic transfer coefficients are in the average of 0.84 and 0.15 respectively. Corrosion resistance measurements provided a rapid decrease in corrosion rate from 7 to 1 mm/year.
机译：使用失重，吸附等温线分析，耐极化性和电位动力学极化技术研究了胺基抑制剂（CORTRON AR-505）对海水中1018碳钢腐蚀的影响。根据Shawabkeh-Tutunji吸附等温线方程，AR-505吸附在钢表面。获得最大吸附容量为0.097 mg AR-505以覆盖单层吸附。腐蚀动力学表明，抑制效率随抑制剂浓度和溶液pH值的增加而增加，而随溶液温度和搅拌速度的增加而降低。 Butler-Volmer方程拟合的极化数据表明，阳极和阴极的传输系数平均值分别为0.84和0.15。耐腐蚀性的测量使腐蚀速率从7毫米/年迅速降低。

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