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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12729
Title: Effect of equal channel angular extrusion on wear and corrosion behavior of the orthopedic Ti-13Nb-13Zr alloy in simulated body fluid
Authors: Suresh, K. S.
Geetha M.
Richard C.
Landoulsi J.
Ramasawmy H.
Suwas S.
Asokamani R.
Published in: Materials Science and Engineering C
Abstract: We report investigations on the texture, corrosion and wear behavior of ultra-fine grained (UFG) Ti-13Nb-Zr alloy, processed by equal channel angular extrusion (ECAE) technique, for biomedical applications. The microstructure obtained was characterized by X-ray line profile analysis, scanning electron microscope (SEM) and electron back scattered diffraction (EBSD). We focus on the corrosion resistance and the fretting behavior, the main considerations for such biomaterials, in simulated body fluid. To this end, potentiodynamic polarization tests were carried out to evaluate the corrosion behavior of the UFG alloy in Hanks solution at 37°C. The fretting wear behavior was carried out against bearing steel in the same conditions. The roughness of the samples was also measured to examine the effect of topography on the wear behavior of the samples. Our results showed that the ECAE process increases noticeably the performance of the alloy as orthopedic implant. Although no significant difference was observed in the fretting wear behavior, the corrosion resistance of the UFG alloy was found to be higher than the non-treated material. © 2012 Elsevier B.V. All rights reserved.
Citation: Materials Science and Engineering C (2012), 32(4): 763-771
URI: https://doi.org/10.1016/j.msec.2012.01.022
http://repository.iitr.ac.in/handle/123456789/12729
Issue Date: 2012
Keywords: Corrosion
ECAE
Fretting wear
Microstructure
Titanium alloy
ISSN: 9284931
Author Scopus IDs: 54882593400
56112315700
7202302252
23094943500
55025553900
7003627765
6603795576
Author Affiliations: Suresh, K.S., Department of Materials. Engineering, Indian Institute of Science, Bangalore 560012, India
Geetha, M., School of Mechanical and Building Sciences, VIT University, Vellore, India
Richard, C., Laboratoire de Mécanique et de Rhéologie EA 2640, Polytech'Tours, 37000 Tours, France
Landoulsi, J., Laboratoire de Réactivité de Surface, UMR 7197 CNRS, Université Pierre and Marie Curie - Paris VI, 4 Place Jussieu, Case 178, F-75252 Paris, France
Ramasawmy, H., University of Mauritius, Faculty of Engineering, Réduit, Mauritius
Suwas, S., Department of Materials. Engineering, Indian Institute of Science, Bangalore 560012, India
Asokamani, R., School of Mechanical and Building Sciences, VIT University, Vellore, India
Corresponding Author: Geetha, M.; School of Mechanical and Building Sciences, VIT University, Vellore, India; email: geethamanivasagam@vit.ac.in
Appears in Collections:Journal Publications [MT]

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