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Thickness Effect of PEO-Coating on MA8 Magnesium Alloy on Their Protective Properties

  • S. V. OleinikEmail author
  • V. S. Rudnev
  • Yu. A. Kuzenkov
  • T. P. Yarovaya
  • L. F. Trubetskaya
  • P. M. Nedozorov
PROTECTIVE COATINGS

Abstract

Technologies of plasma electrolytic oxidation (PEO) make it possible to form coatings on magnesium alloys possessing a high adhesion to a substrate. Therefore, PEO-coatings can be considered as an efficient underlayer for polymer coatings. It also offers the possibility of addressing the problem of a high porosity of resulting PEO-coating. In this work, the opportunity of improving the protective properties of PEO-coating of different thicknesses on MA8 alloy through their treatment with water-soluble polymers was studied. It was shown that for the coatings with the thickness exceeding 50 μm, the best result was achieved upon the treatment with a polyurethane water-soluble polymer.

Keywords:

magnesium alloys PEO-coating pitting corrosion corrosion inhibitors water-soluble polymers 

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • S. V. Oleinik
    • 1
    Email author
  • V. S. Rudnev
    • 2
    • 3
  • Yu. A. Kuzenkov
    • 1
  • T. P. Yarovaya
    • 2
  • L. F. Trubetskaya
    • 1
  • P. M. Nedozorov
    • 2
  1. 1.Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of SciencesMoscowRussia
  2. 2.Institute of Chemistry, Far Eastern Branch, Russian Academy of SciencesVladivostokRussia
  3. 3.Far Eastern Federal UniversityVladivostokRussia

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