The obtained Langmuir and Temkin isotherms are shown in Fig. . For all examined alloys they have several linear sections, each characterized by a different slope. For the proper calculations, it was assumed that only the first section corresponding to the smallest concentrations of the molybdate inhibitor in the solution (10-30 mM) and the lowest surface coverage θ is used in the calculations, corresponding to the conditions when a surface monolayer of the inhibitor is formed. The following regions on the isotherm, characterized with different slopes (are not shown), can be assigned to the processes of molybdate polymerization and further growth of a 3D inhibitor film, as was observed in our previous studies of this inhibitor .