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Analysis of zinc coatings on the basis of the iron-zinc phase diagram

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The structure of zinc coatings is studied on the basis of the iron-zinc phase diagram, and the coating properties are compared. Corrosion tests indicate that diffusional zinc coatings are preferable in challenging operating conditions. Their structure consists mainly of intermetallides (iron-zinc phases) whose corrosion resistance is greater than that of pure zinc, primarily on account of passivation by zinc ferrites (ZnFeO2, ZnFe2O4), as well as ZnO. The coating life in various aggressive media is considered, together with the main applications of zinc coatings.

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References

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Original Russian Text © E.V. Proskurkin, I.V. Petrov, A.Yu. Zhuravlev, O.V. Ivanov, D.A. Sukhomlin, 2012, published in “Stal’,” 2012, No. 7, pp. 59–64.

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Proskurkin, E.V., Petrov, I.V., Zhuravlev, A.Y. et al. Analysis of zinc coatings on the basis of the iron-zinc phase diagram. Steel Transl. 42, 600–605 (2012). https://doi.org/10.3103/S096709121207008X

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  • DOI: https://doi.org/10.3103/S096709121207008X

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