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    Morphology and Corrosion Properties of Hydroxyapatite Coating on VT6 Titanium Alloy

    Year: 2023

    Journal: Materials Science, Volume 58, 2023-05-01

    Authors: Pohrelyuk, I. M.; Tkachuk, O. V.; Proskurnyak, R. V.; Kuznetsov, O. V.; Gnilitskyi, Ya. M.

    Keywords: BT6 titanium alloy; hydroxyapatite; nitriding; plasma-electrolytic oxidation; Ringer’s solution

    The formation of hydroxyapatite coating on BT6 titanium alloy under the combined treatment: nitriding and plasma-electrolytic oxidation in an alkaline electrolyte (hydroxyapatite + 1M potassium hydroxide) was investigated. Such treatment promotes the growth of the Ca10 (PO4 )6(OH)2 hydroxyapatite phase, that can be attributed to an increase of the centers of hydroxyapatite crystallization on the pre-nitrided surface. The hydroxyapatite coating on pre-nitrided surface provided higher hydrophilicity and better corrosion resistance in Ringer’s solution at a temperature of 37°C.
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