Influence of different modes of microarc oxidation of titanium on the electrochemical properties and surface morphology of the obtained coatings

Kasatkin, V.E.; Kasatkina, I.V.; Bogdashkina, N.L.; Gerasimov, M.V.; Krit, B.L.; Grigoriev, S.N.; Suminov, I.V.; Kozlov, I.A.

Авторы: Kasatkin V.E., Kasatkina I.V., Bogdashkina N.L., Gerasimov M.V., Krit B.L., Grigoriev S.N., Suminov I.V., Kozlov I.A.
Журнал: Surface Engineering
Том: 39
Номер: 3
Год издания: 2023
Издательство: Maney Publishing
Местоположение издательства: United Kingdom
Первая страница: 295
Последняя страница: 306
Номер статьи: 21 Jun 2023
DOI: 10.1080/02670844.2023.2223451
Аннотация: The influence of Microarc Oxidation (MAO) modes of titanium substrate in electrolytes of the original composition is investigated. Used electrolytes no contain sodium silicate but includes nickel sulphate, sodium aluminate and alkali. The morphology and composition of the obtained coatings were studied by electron microscopy. The electrochemical behaviour was studied using polarisation curves and electrochemical impedance spectroscopy (EIS). Proposed Equivalent circuits are adequately corresponded to experimental EIS data with no more 6% error. The dependence between the elements of the Equivalent circuits and the morphological characteristics depending on the processing is considered. It is shown that MAO coatings on titanium have high corrosion resistance in an aggressive sulphuric acid. The electrochemical properties of coatings undergo irreversible changes in the direction of deterioration after anodic polarisation. It has been established that nickel doping of MAO coatings on titanium does not allow them to serve as anode materials.
Добавил в систему: Касаткин Вадим Эдуардович

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Influence of different modes of microarc oxidation of titanium on the electrochemical properties and surface morphology of the obtained coatingsстатья Электронная публикация

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