A problem of measuring the interaction physicochemical parameters in the process of roasting the aluminum enameled articles is considered. The data are needed for revealing the kinetic regularities and mechanism of redox processes at the boundary of contacting phases with the purpose of the choice of optimum roasting conditions. The corrosion rate of Al by enamels is computed by the method of corrosion diagrams. The use of the latter in description of the redox processes permits to predict a growth of diffusion coefficients of cations being reduced with diminution of their content in melt.