Comparison of the Behavior between Welded Joint and Base Metal of a Stainless Steel Alloy Subjected to Corrosion Test by Electrochemical Impedance Spectrometry Márcio Fernando Thomas, Fabio dos Santos Silva, Valter Florencio, Wilson José Biguetti, Emmanuelle Sa Freitas

Abstract

AISI 316 stainless steel is widely used in industry, standing out due to its anticorrosive properties in chlorinated and non-oxidizing environments. The present study consisted of evaluating the corrosion resistance of a welded joint, through electrochemical impedance spectroscopy technique, in comparison with the resistance of the base metal, to verify if there were losses in corrosion resistance due to the welding process used. The studied material, as expected, demonstrates through experimental diagrams profiles of steel with high corrosion resistance, presenting high values ​​of polarization resistance and phase angles.