Abstract
In this research the electrochemical performance of a high strength low alloy steel (HSLA) in contact with a brine solution containing a filmic inhibitor was studied. The API X100 steel was obtained through a casting of steel followed by a rolling process. The steel was microstructurally and mechanically characterized. A multiphasic ferrite-bainite morphology was found, as well as an average hardness of 209 HB after rolling, and using a correlation between Brinell hardness and tensile strength, a resistance of 104,500 Psi was determined. The steel was characterized by Electrochemical Impedance Spectroscopy (EIS) using a brine solution with 50 ppm of corrosion inhibitor like electrolyte. In the electrochemical analysis a capacitive system was obtained, which was influenced by the processes of mass transfer and adsorption, which limited the charge transfer processes. The addition of inhibitor improved the absorption processes by limiting the oxide-reduction processes
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