Corrosion behavior of composite coatings containing hydroxyapatite particles on Mg alloys by plasma electrolytic oxidation: A review

Journal of Magnesium and Alloys, Journal Year: 2023, Volume and Issue: 11(9), P. 2999 - 3011

Published: Sept. 1, 2023

Mg and its alloys have been introduced as promising biodegradable materials for biomedical implant applications due to their excellent biocompatibility, mechanical behavior, biodegradability. However, susceptibility rapid corrosion within the body poses a significant challenge restricts applications. To overcome this issue, various surface modification techniques developed enhance resistance bioactivity of Mg-based implants. PEO is potent technique producing an oxide film on that significantly minimizes tendency corrode. inevitable defects discharges poor biological activity during coating process remain concern. Therefore, adding suitable particles solution. Hydroxyapatite (HAp) has attracted much attention in development scientific community. HAp shows biocompatibility similarity chemical composition mineral portion bone. combination with implants through shown improvements bioactivity. This review paper provides comprehensive overview recent advances preparation, characterization, behavior by PEO.

Language: Английский

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Advancements in enhancing corrosion protection of Mg alloys: A comprehensive review on the synergistic effects of combining inhibitors with PEO coating

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 1, 2024

Magnesium (Mg) alloys are lightweight materials with excellent mechanical properties, making them attractive for various applications, including aerospace, automotive, and biomedical industries. However, the practical application of Mg is limited due to their high susceptibility corrosion. Plasma electrolytic oxidation (PEO), or micro-arc (MAO), a coating method that boosts alloys' corrosion resistance. despite benefits PEO coatings, they can still exhibit certain limitations, such as failing maintain long-term protection result inherent porosity. To address these challenges, researchers have suggested use inhibitors in combination coatings on alloys. Inhibitors chemical compounds be incorporated into applied post-treatment further boost resistance PEO-coated Corrosion inhibitors, whether organic inorganic, act by forming protective barrier, hindering process, modifying surface properties reduce Containers made materials, polyelectrolyte shells, layered double hydroxides, polymer mesoporous inorganic materials. Encapsulating containers fully compatible matrix substrate promising approach incorporation. Laboratory studies shown results, demonstrating significant mitigation, extending service life alloy components aggressive environments, providing self-healing properties. In general, this review presents available information incorporation which lead improved performance demanding environments.

Language: Английский

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Enhanced electrochemical and photocatalytic performance achieved through dual incorporation of SnO2 and WO3 nanoparticles into LDH layer fabricated on PEO-coated AZ31 Mg alloy

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(5), P. 1880 - 1898

Published: May 1, 2024

This study explores the potential of LDH flakes decorated with metallic oxide nanoparticles to function as both anti-corrosion barriers against chloride anions and heterogeneous photocatalysts for tetracycline degradation under visible light. The process involves modifying primarily MgO-based inorganic porous film by growing a MgFe film, followed individual dual incorporation SnO2 WO3 nanoparticles. these into matrix leads synergistic interactions, effectively sealing pre-existing defects within facilitating in-situ formation catalytic sites through oxidation induction surface oxygen vacancy defects, which synergistically contribute enhancement electrochemical photocatalytic activities. enhanced stability is reflected in significant reduction corrosion current density 4 orders magnitude compared unmodified film. Additionally, demonstrates sustained functionality, achieving (95.5 %) two hours. presents novel approach, highlighting effectiveness LDHs metal oxides an anti-corrosive agent photocatalyst, promising implications environmental remediation wastewater purification.

Language: Английский

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Maximizing the potential applications of plasma electrolytic oxidation coatings produced on Mg-based alloys in anti-corrosion, antibacterial, and photocatalytic targeting through harnessing the LDH/PEO dual structure

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(7), P. 2674 - 2694

Published: July 1, 2024

There is an increasing interest in the development of Mg alloys, both for industrial and biomedical applications, due to their favorable characteristics such as being lightweight robust. However, inadequate corrosion resistance lack antibacterial properties pose significant challenges necessitating implementation advanced coating engineering techniques. Plasma electrolytic oxidation (PEO) has emerged a preferred technique because its distinctive successful surface modification results. there continuous need further enhancements optimize performance functionalities protective treatments. The integration layered double hydroxide (LDH) into PEO coatings on alloys presents promising approach bolstering properties. This thorough review delves latest developments integrating LDH corrosion-related purposes. It particularly emphasizes improvements resistance, effectiveness, photocatalytic resulting from incorporation coatings. two key mechanisms that enhance containing are anion exchangeability structure pore-sealing effect. Moreover, activity with stemmed release agents stored within structure, alterations pH levels, photothermal conversion property. Furthermore, by incorporating coatings, new opportunities emerge tackling environmental issues through boosted properties, especially realm pollutant degradation.

Language: Английский

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Corrosion behavior amelioration of Ti-based alloys by the hybrid plasma electrolytic oxidation (PEO)/polymer coatings: A review

Hybrid Advances, Journal Year: 2024, Volume and Issue: 5, P. 100151 - 100151

Published: Feb. 9, 2024

Ti and Ti-based alloys are increasingly employed as components for various industrial applications, both structural functional. Forming coatings is one of the potentially highly effective methods to shield products from adverse environmental effects. Among numerous techniques forming on alloys, plasma electrolytic oxidation (PEO) stands out. Coatings produced through PEO exhibit high resistance corrosion, substantial wear, strong adhesion substrate, which attributed formation chemical bonds between underlying material coating. Conversely, may not provide sufficient protection titanium due presence porosity fine cracks. Establishing an organic film coating surface a potent strategy seal defects, thereby inhibiting intrusion corrosive elements into substrate. Applying polymer layer could be approach manage extent damage enhance corrosion. This article reviews latest developments in PEO/polymer composite investigates corrosion characteristics these coatings.

Language: Английский

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Electrolyte and electrolyte-additives for improved plasma electrolytic oxidation on magnesium alloys

Applied Surface Science Advances, Journal Year: 2025, Volume and Issue: 26, P. 100700 - 100700

Published: Jan. 29, 2025

Language: Английский

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Tailoring surface defects in Plasma Electrolytic Oxidation (PEO) treated 2-D black TiO2: Post-treatment role, and intensification by peroxymonosulfate activation in visible light-driven photocatalysis

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 340, P. 123197 - 123197

Published: Aug. 22, 2023

Language: Английский

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A systematic study on modulation of plasma electrolytic oxidation parameters for optimizing photocatalytic coatings on titanium substrates

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 963, P. 171234 - 171234

Published: July 3, 2023

Language: Английский

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Synergy of Cu2+-Cu(OH)2-CuO with TiO2 coatings, fabricated via plasma electrolytic Oxidation: Insights into the multifaceted mechanism governing visible light-driven photodegradation of tetracycline

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146588 - 146588

Published: Oct. 13, 2023

Language: Английский

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Development of WO3-incorporated porous ceramic coating: A key role of WO3 nanoparticle concentration on methylene blue photodegradation upon visible light illumination

Ceramics International, Journal Year: 2023, Volume and Issue: 49(19), P. 32181 - 32192

Published: July 24, 2023

Language: Английский

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