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

Bùi Thị Thanh Huyền, Hoàng Thị Bích Thuỷ, Phạm Ngọc Hiệu

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.


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