期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：9
页码：3234-3246
出版社：University of Mohammed Premier Oujda
摘要：The effect of abrasive on electrochemical behaviour of passive film formed on a austenitic stainless steel alloy 59 (UNS N-06059) in polluted phosphoric acid without and with abrasive grit was investigated by potentiodynamic and potentiostatic electrochemical measurements, electrochemical impedance spectroscopy and Mott-Schottky analysis. The results indicated that this alloy exhibited well passive behaviour with and without abrasive. In polluted phosphoric acid, the abrasion causes an electrochemical process acceleration leading to a decrease in the resistance and an increase in the capacity of material. The film formed on steel surface was of p-type and n-type semiconductors in the potential range below and above the flat band potential, respectively. The alloy 59 shows good resistance in the abrasion-corrosion according to his high chromium content, 22.65% Cr provided by the inner oxide film, while the outer film was more defective.
关键词：Abrasion;corrosion; Stainless steel; Polluted phosphoric acid; Passivity; Mott;Schottky; EIS
