Home HOME Bratislava Medical Journal 2015 Bratislava Medical Journal Vol.116, No.2, p.88-92, 2015

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.5

 

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Bratislava Medical Journal Vol.116, No.2, p.88-92, 2015

Title: Mechanical properties and microstructure of Ti-35.5Nb-5.7Ta beta alloy
Author: S. Bartakova, P. Prachar, I. Dvorak, V. Hruby, J. Vanek, M. Pospichal, E. Svoboda, A. Martikan, H. Konecna, I. Sedlak
Abstract: Objective:Titanium and titanium alloys represent generally accepted metallic biomaterials for clinical dentistry and dental implantology. In this paper, we present a Ti-35.5Nb-5.7Ta alloy with a special respect to its microstructure and mechanical characteristics, such as Young modulus of elasticity.
Methods:Three thermal treatments differing in temperature and time of annealing were used during the Ti-35.5Nb-5.7Ta processing in order to evaluate the effects of ageing, melting annealing, and annealing on mechanical characteristics and microstructure.
Results: Using microscopy, the alloy was analyzed and the differences in shares of beta phase grains, alpha particles and precipitates evaluated. The three thermal treatments were evaluated also from technological point of view.
Conclusion:The following thermal treatment was found optimal for the Ti-35.5Nb-5.7Ta alloy: melting annealing at 800 °C for 0.5 hour followed by a cold swaging with a 52–79 % deformation, and final hardening at 500 °C for 2 hours in water(Tab. 2, Fig. 3, Ref. 24).
Keywords: titanium alloys, thermal processing, precipitation grains
Year: 2015, Volume: 116, Issue: 2 Page From: 88, Page To: 92
doi:10.4149/BLL_2015_016


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