文章基本信息

标题：Gibberellic acid as green corrosion inhibitor for carbon steel in hydrochloric acid solutions,
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作者：Fouda A.S. ; Elewady G.Y. ; Shalabi K. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2014
卷号：5
期号：3
页码：767-778
出版社：University of Mohammed Premier Oujda
摘要：The inhibitive action of Gibberellic acid on the corrosion of carbon steel in 1 M HCl solution was investigated by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulations (EFM) techniques. Potentiodynamic polarization studies clearly reveal that Gibberellic acid acts essentially as mixed inhibitor. The inhibition efficiency was found to increase with inhibitor concentration. The adsorption of Gibberellic acid on carbon steel surface is found to obey Langmuir ad sorption isotherm. The morphology of inhibited carbon steel was analyzed by scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX). The mechanism of inhibition process was discussed in terms of the adsorption of Gibberellic acid on the metal surface
关键词：Corrosion inhibition; carbon steel; HCl; EFM; EIS; SEM; EDX