Effect of chromium and molybdenum content on the corrosion resistance of stainless steels in Ablien water used in the petroleum industry

Abstract

This work is devoted to the study, effects of corrosion on the stainless steels, 13%Cr + 2%Mo, 18% Cr and 21%Cr, in two different aqueous solutions of NaCl, 3.5%mass and albian water. We used the electrochemical techniques of tafel curves, polarization curves and electrochemical impedance spectroscopy (EIS) with work electrodes of stainless steels 13%Cr + 2%Mo, 18% Cr and 21%Cr. To see which type of stainless steel can withstand corrosion in the solutions given. A chain of experiments were performed with the use of the electrochemical techniques we mentioned before. After pursuing and checking the results we could find ways to distinguish between the three types of stainless steels that we had in hands.