期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：7
页码：2389-2403
出版社：University of Mohammed Premier Oujda
摘要：The corrosion and inhibitor adsorption processes in carbon steel / Polyvinyl-Alcohol / Hydrochloric acid systems was studied at different temperatures in the range from 298 to 328 K by a series of known techniques such as weight loss, polarization and electrochemical impedance spectroscopy (EIS). It was found that the studied compounds exhibit a very good performance as inhibitors for carbon steel corrosion in 1 M HCl. Results show that the inhibition efficiency increases with inhibitors concentration and depends on its temperature and immersion time. It has been determined that the adsorption for the studied inhibitors on carbon steel complies with the Langmuir adsorption isotherm at all studied temperatures. The kinetic and thermodynamic parameters for carbon steel corrosion and inhibitor adsorption, respectively, were determined and discussed. On the bases of thermodynamic adsorption parameters, comprehensive adsorption (physisorption and chemisorption) for the studied inhibitors on carbon steel surface was suggested.
