English, Article edition: LASER ASSISTED SURFACE MODIFICATION OF Tiâ6Alâ4V FOR BIOIMPLANT APPLICATION A. BISWAS; U. K. CHATTERJEE; LIN LI; ...

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Bookmark: http://trove.nla.gov.au/version/85178
Physical Description
  • article
Language
  • English

Edition details

Title
  • LASER ASSISTED SURFACE MODIFICATION OF Tiâ6Alâ4V FOR BIOIMPLANT APPLICATION
Author
  • A. BISWAS
  • U. K. CHATTERJEE
  • LIN LI
  • I. MANNA
  • J. DUTTA MAJUMDAR
Physical Description
  • article
Notes
  • The present study aims at enhancing the wear resistance of Tiâ6Alâ4V by laser surface nitriding. Laser surface treatment has been carried out by melting of the sand blasted Tiâ6Alâ4V substrate using a high power continuous wave Diode laser with nitrogen as shrouding environment (at a gas flow rate of 51/​min). Laser surface nitriding led to formation of dendrites of titanium nitrides. The microhardness is improved to a maximum of 900â950 VHN (Vickers hardness number) in laser surface nitriding as compared to 260 VHN of the as-received substrate. Surface nitriding increased primary potential for pit formation (Epp1) as compared to Tiâ6Alâ4V. Biocompatibility behavior showed a better cell viability due to surface nitriding as compared to the as-received Tiâ6Alâ4V.
  • RePEc:wsi:srlxxx:v:14:y:2007:i:04:p:531-534
Language
  • English
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