SURFACE OXIDATION OFTi-6Al-4VFOR BIO-IMPLANT APPLICATION

A. Biswas, U. Bhattacharjee, I. Manna and J. Dutta Majumdar ()
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A. Biswas: Dept. Metal. & Matel. Eng., IIT, Kharagpur, WB 721302, India
U. Bhattacharjee: Dept. Metal. & Matel. Eng., IIT, Kharagpur, WB 721302, India
I. Manna: Dept. Metal. & Matel. Eng., IIT, Kharagpur, WB 721302, India
J. Dutta Majumdar: Dept. Metal. & Matel. Eng., IIT, Kharagpur, WB 721302, India

Surface Review and Letters (SRL), 2007, vol. 14, issue 04, 597-600

Abstract: The present study aims at enhancing the wear resistance and biocompatibility ofTi-6Al-4Vby forming a thin layer of oxide. Surface oxidation has been carried out by controlled heating of the surface ofTi-6Al-4Vsubstrate in air at the temperature ranging from 400–600°C and time from 25–60 h. The phase formed under thermal oxidation was predominantly the rutile and anatase phase. The thickness of the oxide layer varied from 1.5–7.0 μm. The microhardness on the surface was significantly improved as compared to the as-received substrate. Both the corrosion resistance property and biocompatibility were improved.

Date: 2007
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DOI: 10.1142/S0218625X07009748

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