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Surface protection of carbon steel by Octane sulphonic acid-Curcumin system system

机译:辛烷磺酸-姜黄素体系对碳钢的表面保护

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This research aims to study the corrosion inhibition behavior of curcumin (CU) a natural product in combination with octane sulphonic acid as its sodium salt (SOS) on the corrosion of carbon steel in a dam water using weight-loss method. Results of weight loss method indicated inhibition efficiency (IE) increased with increasing inhibitor concentration. As the immersion period increases IE decreases. Polarization study reveals that SOS-CU system controls the anodic reaction predominantly. AC impedance spectra reveal that a protective film is formed on the metal surface. These observations have been supported by surface morphology study using scanning electron microscopy (SEM) carried out on the carbon steel samples in the absence and presence of inhibitor.
机译:本研究旨在通过重量损失法研究姜黄素(CU)与辛烷磺酸及其钠盐(SOS)的组合对大坝水中碳钢的腐蚀抑制行为。减肥方法的结果表明抑制效率(IE)随着抑制剂浓度的增加而增加。随着浸没时间的增加,IE减小。极化研究表明,SOS-CU系统主要控制阳极反应。交流阻抗谱表明在金属表面形成了保护膜。这些观察结果得到了在不存在和存在抑制剂的情况下对碳钢样品进行扫描电子显微镜(SEM)的表面形态研究的支持。

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