Laser surface nitriding of Ti-6Al-4V for bio-implant application

Biswas, Amit ; Maity, T. K. ; Chatterjee, U. K. ; Manna, I. ; Li, Lin ; Majumdar, J. Dutta (2006) Laser surface nitriding of Ti-6Al-4V for bio-implant application Trends in Biomaterials & Artificial Organs, 20 (1). pp. 68-71. ISSN 0971-1198

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The present study aims at enhancing the biocompatibility of Ti-6Al-4V by laser surface nitriding. Laser surface nitriding has been carried out by melting of sand blasted Ti-6Al-4V substrate using a high power continuous wave DIODE laser with nitrogen as shrouding environment (at a pressure of 5l/min). Following laser treatment, a detailed characterization of the surface has been conducted. Microhardness and biocompatibility have been evaluated. Laser surface nitriding led to formation of dendrites of TiN on the surface. The microhardness is improved to 900- 950 VHN (in laser surface nitriding) as compared to 260 VHN of as-received substrate. Biocompatibility behavior showed a better cell viability in laser surface nitrided Ti-6Al-4V sample as compared to as-received one.

Item Type:Article
Source:Copyright of this article belongs to Society for Biomaterials and Artificial Organs - India.
ID Code:18883
Deposited On:17 Nov 2010 12:47
Last Modified:17 May 2016 03:32

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