ASSIS, K.S. ; SOUSA, Flávio Vieira Vasques de ; Margarit-Mattos, I.C.P. ; MATTOS, O R .
Resumo: This work utilizes the electrochemical parameters proposed by the ISO 12732 standard to evaluate the susceptibility to localized corrosion of super duplex stainless steel UNS S32760. The relationship between these electrochemical parameters (ratio of peak currents or charge obtained with activation and reactivation during potentiodynamic polarization) and the percentage by weight of deleterious phases are evaluated. For the aging conditions, the deleterious effect of the phases has been satisfactorily detected by the DL-EPR technique. A new experimental protocol allowed the characterization of the attacks that occurred for each polarization range
