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Bioactive Film Generation during Titanium Alloy Cutting in Oxygen-Enriched Atmosphere

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Abstract:

The oxide film on implant surface of biomedical titanium alloy is crucial to its bioactivity and biocompatibility in human body. A new method is proposed to obtain titanium oxide film by cutting process in oxygen-enriched atmosphere. A gas mixing system is firstly developed to provide oxygen-argon mixed gas to the flank face of insert during turning. The results show that oxygen-enriched atmosphere promote the oxidation reaction of titanium element. Thicker oxide film can be obtained in oxygen-enriched condition than that in natural atmosphere. The corrosion resistance is also improved significantly by this method in electrochemical test.

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Periodical:

Materials Science Forum (Volumes 800-801)

Pages:

37-41

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.800-801.37

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Online since:

July 2014

Authors:

Rui Zhang*, Yi Wan, Xing Ai, Zhan Qiang Liu

Keywords:

Biomedical Titanium Alloy, Corrosion Resistance, Cutting, Oxidation Rate, Oxygen-Enriched Atmosphere

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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