Comparative Tribocorrosion Resistance in Physiological Solution of Untreated and Modified Ti-6Al-4V Alloy Surface by Electrodeposition of Hydroxyapatite Coatings into Nanoporous Titania Layers

Eliza Dănăilă; Lidia Benea

doi:10.4028/www.scientific.net/AMR.1139.64

Paper Titles

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Electrochemical Behavior of Cobalt-Chromium Alloy as Biomaterial in Different pH Environments
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Comparative Tribocorrosion Resistance in Physiological Solution of Untreated and Modified Ti-6Al-4V Alloy Surface by Electrodeposition of Hydroxyapatite Coatings into Nanoporous Titania Layers
p.64

Characterization and Corrosion-Resistance Performance of Hybrid Co/UHMWPE Composite Biocoatings
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Comparative Tribocorrosion Resistance in Physiological Solution of Untreated and Modified Ti-6Al-4V Alloy Surface by Electrodeposition of Hydroxyapatite Coatings into Nanoporous Titania Layers

Abstract:

Metallic biomaterial are the most suitable for replacing failed hard tissue up to now and for that is important to know the tribocorrosion resistance of these materials before use in biomedical applications. Surface engineering can play a significant role in extending the performance of medical implants made of titanium and its alloys. In this work was chosen electrodeposition of hydroxyapatite (HA) coatings into nanoporous titania layer formed by anodic oxidation as modified Ti-6Al-4V alloy surface. The comparative tribocorrosion behavior of untreated Ti-6Al-4V alloy surface, anodic nanoporous TiO₂ surface and electrodeposited hydroxyapatite (HA) coatings into nanoporous TiO₂ layers has been investigated in a bio-simulated fluid solution. The results of these investigations have shown that both surface treatments applied have improved the tribocorrosion resistance and friction coefficients as compared to the untreated Ti–6Al–4V alloy surface.