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Atmospheric and Marine Corrosion of PEO and Composite Coatings Obtained on Al-Cu-Mg Aluminum Alloy.
Egorkin, Vladimir S; Medvedev, Ivan M; Sinebryukhov, Sergey L; Vyaliy, Igor E; Gnedenkov, Andrey S; Nadaraia, Konstantine V; Izotov, Nikolaj V; Mashtalyar, Dmitriy V; Gnedenkov, Sergey V.
  • Egorkin VS; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
  • Medvedev IM; All-Russian Scientific-Research Institute of Aviation Materials, 105005 Moscow, Russia.
  • Sinebryukhov SL; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
  • Vyaliy IE; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
  • Gnedenkov AS; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
  • Nadaraia KV; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
  • Izotov NV; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
  • Mashtalyar DV; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
  • Gnedenkov SV; Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia.
Materials (Basel) ; 13(12)2020 Jun 17.
Article en En | MEDLINE | ID: mdl-32560318
ABSTRACT
Wrought Al-Cu-Mg aluminum alloy (D16) was treated by bipolar plasma electrolytic oxidation to create a base plasma electrolytic oxidation (PEO)-coating with corrosion protection and mechanical properties superior to bare alloy's natural oxide layer. Additional protection was provided by the application of polymer, thus creating a composite coating. Electrochemical and scratch tests, scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction studies were performed. Degradation of coatings in the marine atmosphere and seawater was evaluated. The composite polymer-containing coating provided better corrosion protection of aluminum alloy compared to the PEO-coating, although seawater affected both. During the atmospheric exposure, the PEO-coating provided reasonably good protection, and the composite coating showed excellent performance.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2020 Tipo del documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2020 Tipo del documento: Article