Suresh Kumar, G (2025) Hydroxyapatite coatings for biodegradable magnesium alloys: Recent advances, strategies, challenges, and future prospects. Hydroxyapatite coatings for biodegradable magnesium alloys: Recent advances, strategies, challenges, and future prospects. pp. 5314-5344. ISSN 2213-9567

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Abstract

Biodegradable magnesium (Mg) alloys have received increased attention as temporary medical implants due to their mechanical properties
and density, similar to natural bone. However, the fast corrosion of Mg alloys in a physiological condition limits their wide applications.
Hence, hydroxyapatite (HAp) coatings on Mg alloys have attracted much attention to address this corrosion issue and enhance the surface
functionalities. In this paper, we present a review of HAp coating strategies on Mg alloys, including the sol-gel method, hydrothermal
treatment, biomimetic coating, electrochemical deposition, electrophoretic deposition, and plasma electrolytic oxidation technique, and their
recent progress to enhance the surface characteristics of Mg alloys. This review focused on aspects of coating morphology, hybrid formulations,
and how they influence corrosion behavior as well as in vitro and in vivo performance. Moreover, we have discussed the future prospects of
HAp-coating strategies, emphasizing on multifunctional, hybrid, and smart coatings for next-generation implant materials.
© 2025 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)

Item Type: Article
Uncontrolled Keywords: Keywords: Mg alloys; Hydroxyapatite; Coatings; Corrosion; Implants.
Divisions: PSG College of Arts and Science > Department of Physics
Depositing User: Dr. B Sivakumar
Date Deposited: 01 Apr 2026 06:06
Last Modified: 01 Apr 2026 06:06
URI: https://ir.psgcas.ac.in/id/eprint/2762

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