Characterization of thermally oxidized Ti6Al7Nb alloy for biological applications
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Wear and biological performances of a thermally oxidized Ti6Al7Nb alloy were investigated. Thermal oxidation (TO) performed at 600 °C for 60 h in air formed a 0.6 μm thick and relatively rough (having an average surface roughness of 1.1 μm) oxide layer (OL) on the surface. The OL was identified as the rutile form of TiO2 and there was an oxygen diffusion zone (ODZ) with an average thickness of 5 μm just beneath it. The applied TO process resulted in more than ten-fold increase in wear resistance in a simulated body fluid (SBF) solution. Additionally, the biological performance was also enhanced as revealed by SBF immersion and cell culture tests.
Key wordsbiomaterials surface modification oxidation scanning electron microscopy wear
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- 3.Y. Oshida, Bioscience and Bioengineering of Titanium Materials, Elsevier, New York (2006).Google Scholar
- 6.I.-V. Brânzoi, M. Iordoc, and F. Brânzoi, U.P.B. Sci. Bull. Series B 71, 31 (2009).Google Scholar
- 20.L. Saldaña, G. Vallés, N. Vilaboa, J. Gonzáles-Cabreo, J. L. Gonzáles-Carrasco, M. E. Martinez, and L. Munuera, Eur. Cells Mater. 5, 86 (2003).Google Scholar
- 31.O. Meydanoglu, M. Cingi, M. Baydogan, H. Cimenoglu, and E.S. Kayali, 137th Annual Meeting and Exhibition of the Minerals-Metals-and-Materials-Society, New Orleans, LA (2008).Google Scholar