Stability of oxide films formed on mild steel in turbulent flow conditions of alkaline solutions at elevated temperatures

摘要

In the industries involving alkaline solutions in different process streams, the nature and stability of oxide films formed on the metallic surfaces determine the rates of erosion-cor- rosion of the equipment. In the present study the characteristics of the oxide films formed on AISI 1020 steel in a 2.75 M sodium hydroxide solution at temperatures up to 175℃, have been Investigated by employing electrochemical techniques of cyclic voltammetry and chrono- Amperometry.