Reger, Nimu Chand and Devi, K Bavya and Balla, Vamsi Krishna and Das, Mitun (2023) In-Vitro Corrosion and Wear Studies of Ceramic Layers on Additively Manufactured Zr Metal for Implant Applications. Transactions of The Indian Institute of Metals, 76 (7). pp. 1949-1958. ISSN 0972-2815

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In the present study, an attempt has been made to develop in-situ grown ceramic layer on additively manufactured Zr metal by thermal oxidation (TO) treatment. Detailed characterization and testings were performed to determine the thickness of the ceramic layer, oxide phases, hardness, surface roughness, wettability in-vitro wear, and in-vitro corrosion resistance of theses oxidized specimens. The X-ray diffraction analysis confirmed the formation of ZrO2 in the in-situ oxide layer and its thickness increased significantly at higher oxidation temperatures. However, among the samples, lowest in-vitro wear rate (2.12 +/- 0.36 x 10(-6) mm(3)/N m) was demonstrated by the samples oxidized at 600 degrees C for 6 h. Further this obtained wear rate was correleted with thickness of oxide layer, contact angle, surface rougness, and hardness. It is also noticed that the formation of oxide phases on Zr significantly increase the in-vitro corrosion resistance compared to untreated Zr substrate in Hanks Balanced Salt solution (HBSS).

Item Type: Article
Subjects: Engineering Materials
Divisions: Bioceramics & Coating
Depositing User: Bidhan Chaudhuri
Date Deposited: 06 Oct 2023 12:20
Last Modified: 06 Oct 2023 12:20

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