Mitigation of the Wear Failure of Ti-6Al-4V Dental Biomedical Implant by Isothermal Treatment
Ti-6Al-4V alloy has been in use as dental implants till date because of its favorable mechanical properties. However, it wears off over a period of time in the oral cavity. Bearing this problem in mind, this research aims at mitigating the wear failure of Ti-6Al-4V dental implant via isothermal treatment. The as-received Ti-6Al-4V was cut and machined into 30 mm × 25 mm × 3 mm for abrasive wear samples. The samples were solution heat-treated at 960 °C accompanied by the aging process at 480 °C for varying soaking times of 2, 4, 6, and 8 h. The samples for wear analysis were subjected to abrasive wear using a three-body abrasive wear test machine with varying loads of 5 and 15 N, and silica sand was used as the abrasive medium. From the result, the wear rate of the heat-treated titanium alloy increased with the applied load, and the samples aged for 8 h showed 99 and 98% wear resistance at 5 and 15 N, respectively. In the present study, it was established that isothermal aging can be employed to enhance the wear resistance of Ti-6Al-4V alloy for use in biomedical applications.
KeywordsTi-6Al-4V alloy Dental implant Wear scar Biomedical
- 1.A. Srivastav, An Overview of Metallic Biomaterials for Bone Support and Replacement, Biomedical Engineering, Trends in Materials Science, ed. by A. Laskovski (InTech, 2011). http://www.intechopen.com/books/biomedical-engineering-trends-in-materialsscience/An-overview-of-metallic-biomaterials-for-bone-support-and-replacement.
- 3.P.F. Barbosa, S.T. Button, Microstructure and mechanical behaviour of isothermally forged Ti-6Al-7Nb alloy. Inst. Mech. Eng. Part L 214, 23–31 (2000)Google Scholar
- 7.G.K. Smith, Orthopedic biomaterials systemic aspects of metallic implant degradation, in Biomaterials in Reconstructive Surgery, ed. by L. Rubin (CV Mosby, St Louis, 1983), p. 229Google Scholar
- 8.H. Hermawan, D. Ramdan, J.R.P. Djuansjah, Metals for Biomedical Applications, Biomedical Engineering—from Theory to Applications, ed. by R. Fazel (InTech, 2011). http://www.intechopen.com/books/biomedical-engineering-from-theory-toapplications/metals-for-biomedical-applications.
- 10.N.A. Mariano, R.G. Oliveira, M.A. Fernandes, E.C.S. Rigo, Corrosion behavior of pure titanium in artificial saliva solution. Materio (Rio de J) 14(2), 635–970 (2009)Google Scholar
- 13.A.P.I. Popoola, O.F. Ochonogor, M. Abdulwahab, S. Pityana, C. Meacock, Microhardness and wear behaviour of surface modified Ti6Al4V/Zr-TiC metal matrix composite for advanced materials. J. Optoelectron. Adv. Mater. 14(11–12), 991–997 (2012)Google Scholar