文章基本信息

标题：Evaluation of some thiadiazole derivatives as acid corrosion inhibitors for carbon steel in aqueous solutions
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作者：Fouda A.S. ; Shalabi K. ; Ezzat R. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：4
页码：1022-1039
出版社：University of Mohammed Premier Oujda
摘要：Inhibition of C-steel corrosion by some thiadiazo le derivatives in 1 M HCl was investigated by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) measurements. The inhibition efficiency increased with increase in inhibitor concentration but deceased with rise in temperature. The thermod ynamic parameters of corrosion and adsorption processes were determined and discussed. The adsorption of these inhibitors was found to obey Langmuir adsorption isotherm. The results obtained from the three different techniques were in good agreement. Quantum structure-activity relationships have been used to study the effect of molecular structure on inhibition efficiency of the inhibitors. The surface morphology of carbon steel sample was investigated b y scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) studies
关键词：Corrosion inhibition; C;steel; HCl; thiadiazole derivatives