Changes in Polarization Resistance in the Process of Formation of Protective Phase Layers with Participation of Organic Ligands

We study the principal kinetic regularities of the formation of protective metalloorganic films in acid media in the presence of complex-forming corrosion inhibitors and propose an equivalent scheme of the metal/electrolyte interface taking into account the polarization resistance of diffusion of the phase layer and intended for the analysis of the dynamics of its growth in the course of formation of protective layers with participation of inhibitors of the indicated kind. It is shown that the thickness of the film increases and protective properties improve with time according to the parabolic law obeying the regularities of diffusion kinetics.