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In Vitro Bioactivity of Surface-Modified $beta$-Ti Alloy for Biomedical Applications

Publication Type : Journal Article

Publisher : Journal of Materials Engineering and Performance

Source : Journal of Materials Engineering and Performance, Volume 20, Number 7, p.1271–1277 (2011)

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Keywords : Biomaterials, corrosion, EIS, SBF solution, SEM, β-Ti alloy

Campus : Coimbatore

School : School of Engineering

Department : Sciences

Year : 2011

Abstract : Ti-15Mo (β-Ti) alloy was subjected to chemical followed by thermal treatment for the enhancement of in vitro bioactivity and corrosion resistance. The surface-modified specimens were characterized using scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDAX). The results indicated the formation of nanoporous layer and flake-like structure developed during chemical and subsequent thermal treatments. The in vitro bioactivity of the surface-treated β-Ti alloy was evaluated by immersing in simulated body fluid (SBF) solution. The formation of apatite particles was confirmed using Fourier transform-infrared spectroscopy, SEM, and EDAX analyses. Moreover, the electrochemical behavior of surface-modified specimens in SBF solution was evaluated using potentiodynamic polarization and electrochemical impedance spectroscopy. The results revealed that the surface-modified specimens exhibited higher potential value and lower current density when compared to untreated specimen. The EIS studies showed the formation of new layer, indicating the growth of apatite-like particles.

Cite this Research Publication : Y. Sasikumar, Dr. Karthega M., and Rajendran, N., “In Vitro Bioactivity of Surface-Modified $\beta$-Ti Alloy for Biomedical Applications”, Journal of Materials Engineering and Performance, vol. 20, pp. 1271–1277, 2011.

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