In this work, a new approach is introduced to determine the kinetic constants of the elementary steps involved in the overall reaction of iron anodic dissolution. A procedure based on transient analysis is established, for the first time, that enables the estimation of a series of kinetic parameters that can be used for modeling the anodic potentiodynamics over a wide range of environmental conditions. The findings of the present research enhance the ability of explaining how different environmental factors (CO2 presence, pH, temperature, steel type, etc.) mechanistically affect the kinetics of iron dissolution.

Subject
Electric current, Perturbation method, Overpotential, Potential range, Iron, Dissolution, Acidity, Constants, Anodic dissolution, Kinetics, Iron dissolution, Electric potential, Step potential
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2023
Association for Materials Protection and Performance (AMPP)
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