Repassivation of Aluminum in the Presence of Phosphate and Nitrate Inhibitors in Corrosive Media

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 o...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2015-03, Vol.50 (5), p.676-681
Main Authors: Zin, І. М., Khlopyk, O. P.
Format: Article
Language:English
Subjects:
Aluminum
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion inhibitors
Corrosion prevention
Inhibition
Materials Science
Nitrates
Phosphates
Repassivation
Solid Mechanics
Structural Materials
Surface chemistry
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Summary: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.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-015-9771-6