Abstract

We study the efficiency of inhibition of the corrosion of aluminum in the stage of repassivation after the destruction of the surface oxide film. It is shown that the addition of phosphate and nitrate inhibitors to an acid-rain solution decreases the difference between the free corrosion potential of the aluminum surface and its transient potential in the course of formation of passive films. It is discovered and proved that the phosphate-nitrate composition exerts a synergistic anticorrosion effect on the mechanically activated aluminum surface.

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