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Chemical Phosphatizing of Carbon Steel

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Abstract

Kinetics of formation of phosphate coatings (PCs) on St3 carbon steel in zinc nitrate–phosphate solution (0.65 М Zn2+ + 0.3 М \({\text{PO}}_{{\text{4}}}^{{{\text{3}} - }}\) + 1.0 М \({\text{NO}}_{{\text{3}}}^{ - },\) рН 1.95) with various additives has been studied at 25°С. It has been shown that introduction of effective silicon-containing additive to phosphatizing solution and further treatment of phosphate films in aqueous solution containing silicon compounds has provided corrosion-stable PCs on St3. Using mathematical planning of Box–Wilson extreme experiment, preparation of PCs with increased protective ability has been optimized under these conditions.

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Authors and Affiliations

  1. Chernyshevskii Saratov National Research State University, Saratov, Russia

    I. A. Kazarinov & N. M. Trepak

  2. Vavilov Saratov State Agricultural University, Saratov, Russia

    L. A. Isaicheva

  3. Diyala University, Baquba, Iraq

    Adiba A. Makhmmod

Authors
  1. I. A. Kazarinov
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  2. L. A. Isaicheva
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  3. Adiba A. Makhmmod
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  4. N. M. Trepak
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Corresponding author

Correspondence to L. A. Isaicheva.

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Translated by A. Muravev

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Kazarinov, I.A., Isaicheva, L.A., Makhmmod, A.A. et al. Chemical Phosphatizing of Carbon Steel. Prot Met Phys Chem Surf 55, 700–705 (2019). https://doi.org/10.1134/S2070205119040075

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  • DOI: https://doi.org/10.1134/S2070205119040075

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