NGHIÊN CỨU TÍNH CHẤT ỨC CHẾ CỦA MUỐI XÊRI ĐỐI VỚI QUÁ TRÌNH ĂN MÒN THÉP TRONG MÔI TRƯỜNG NƯỚC

Abstract

This paper deals with the study of Ce³⁺ compound (CeCl₃) as a non-toxic alternative to chromate for inhibition of mild steel in neutral water environment. Corrosion rates of mild steel in water with various concentrations of Ce³⁺ were determined. Electrochemical and non-electrochemical techniques have been used, such as linear polarization, potentialdynamic, EIS, weight-loss-test. The optimal concentration of the Ce³⁺ inhibitor is 500 ppm.