Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application

Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application

Perumal Ganapathy,1 Geetha Manivasagam,2 Asokamani Rajamanickam,3 Alagumurthi Natarajan4 1Department of Mechanical Engineering, VRS College of Engineering and Technology, Arasur, Villupuram, Tamil Nadu, India; 2Centre for Biomaterials Science and Technology, SMBS, VIT University, Vellore, Tamil Na...

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Autores principales: Ganapathy P, Manivasagam G, Rajamanickam A, Natarajan A
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Lenguaje:EN
Publicado: Dove Medical Press 2015
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Medicine (General)
R5-920
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spelling oai:doaj.org-article:f9fa1cfb9a0145baaecc94516049ac272021-12-02T07:36:58ZWear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application1178-2013https://doaj.org/article/f9fa1cfb9a0145baaecc94516049ac272015-10-01T00:00:00Zhttps://www.dovepress.com/wear-studies-on-plasma-sprayed-al2o3-andnbsp8mole-of-yttrium-stabilize-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013Perumal Ganapathy,1 Geetha Manivasagam,2 Asokamani Rajamanickam,3 Alagumurthi Natarajan4 1Department of Mechanical Engineering, VRS College of Engineering and Technology, Arasur, Villupuram, Tamil Nadu, India; 2Centre for Biomaterials Science and Technology, SMBS, VIT University, Vellore, Tamil Nadu, India; 3Department of Physics, Dhanalakshmi Engineering College, Anna University, Chennai, Tamil Nadu, India; 4Department of Mechanical Engineering, Pondicherry Engineering College, Pondicherry, Puducherry, India Abstract: This paper presents the wear characteristics of the composite ceramic coating made with Al2O3-40wt%8YSZ on the biomedical grade Ti-6Al-4V alloy (grade 5) used for total joint prosthetic components, with the aim of improving their tribological behavior. The coatings were deposited using a plasma spraying technique, and optimization of plasma parameters was performed using response surface methodology to obtain dense coating. The tribological behaviors of the coated and uncoated substrates were evaluated using a ball-on-plate sliding wear tester at 37°C in simulated body-fluid conditions. The microstructure of both the titanium alloy and coated specimen were examined using an optical microscope and scanning electron microscope. The hardness of the plasma-sprayed alumina–zirconia composite coatings was 2.5 times higher than that of the Ti-6Al-4V alloy, while the wear rate of Ti-6Al-4V alloy was 253 times higher than that of the composite-coated Ti-6Al-4V alloy. The superior wear resistance of the alumina–zirconia coated alloy is attributed to its enhanced hardness and intersplat bonding strength. Wear-track examination showed that the predominant wear mechanism of Ti-6Al-4V alloy was abrasive and adhesive wear, whereas, in the case of alumina–zirconia composite coated alloy, the wear was dominated by microchipping and microcracking. Keywords: Ti-6Al-4V alloy, alumina–zirconia, wear, Hank’s solution, titaniumGanapathy PManivasagam GRajamanickam ANatarajan ADove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2015, Iss Supplement 1 Challenges in biomaterials research, Pp 213-222 (2015)
institution DOAJ
collection DOAJ
language EN
topic Medicine (General)
R5-920
spellingShingle Medicine (General)
R5-920
Ganapathy P
Manivasagam G
Rajamanickam A
Natarajan A
Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application
description Perumal Ganapathy,1 Geetha Manivasagam,2 Asokamani Rajamanickam,3 Alagumurthi Natarajan4 1Department of Mechanical Engineering, VRS College of Engineering and Technology, Arasur, Villupuram, Tamil Nadu, India; 2Centre for Biomaterials Science and Technology, SMBS, VIT University, Vellore, Tamil Nadu, India; 3Department of Physics, Dhanalakshmi Engineering College, Anna University, Chennai, Tamil Nadu, India; 4Department of Mechanical Engineering, Pondicherry Engineering College, Pondicherry, Puducherry, India Abstract: This paper presents the wear characteristics of the composite ceramic coating made with Al2O3-40wt%8YSZ on the biomedical grade Ti-6Al-4V alloy (grade 5) used for total joint prosthetic components, with the aim of improving their tribological behavior. The coatings were deposited using a plasma spraying technique, and optimization of plasma parameters was performed using response surface methodology to obtain dense coating. The tribological behaviors of the coated and uncoated substrates were evaluated using a ball-on-plate sliding wear tester at 37°C in simulated body-fluid conditions. The microstructure of both the titanium alloy and coated specimen were examined using an optical microscope and scanning electron microscope. The hardness of the plasma-sprayed alumina–zirconia composite coatings was 2.5 times higher than that of the Ti-6Al-4V alloy, while the wear rate of Ti-6Al-4V alloy was 253 times higher than that of the composite-coated Ti-6Al-4V alloy. The superior wear resistance of the alumina–zirconia coated alloy is attributed to its enhanced hardness and intersplat bonding strength. Wear-track examination showed that the predominant wear mechanism of Ti-6Al-4V alloy was abrasive and adhesive wear, whereas, in the case of alumina–zirconia composite coated alloy, the wear was dominated by microchipping and microcracking. Keywords: Ti-6Al-4V alloy, alumina–zirconia, wear, Hank’s solution, titanium
format article
author Ganapathy P
Manivasagam G
Rajamanickam A
Natarajan A
author_facet Ganapathy P
Manivasagam G
Rajamanickam A
Natarajan A
author_sort Ganapathy P
title Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application
title_short Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application
title_full Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application
title_fullStr Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application
title_full_unstemmed Wear studies on plasma-sprayed Al2O3 and 8mole% of Yttrium-stabilized ZrO2 composite coating on biomedical Ti-6Al-4V alloy for orthopedic joint application
title_sort wear studies on plasma-sprayed al2o3 and 8mole% of yttrium-stabilized zro2 composite coating on biomedical ti-6al-4v alloy for orthopedic joint application
publisher Dove Medical Press
publishDate 2015
url https://doaj.org/article/f9fa1cfb9a0145baaecc94516049ac27
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