Informace o publikaci

Mechanical properties and microstructure of Ti-35.5Nb-5.7Ta beta alloy

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BARTÁKOVÁ Sonia PRACHÁR Patrik DVORAK I. HRUBY V. VANĚK Jiří POSPICHAL M. SVOBODA E. MARTIKAN A. KONECNA H. SEDLAK I.

Rok publikování 2015
Druh Článek v odborném periodiku
Časopis / Zdroj Bratislavské lékarské listy
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
Doi http://dx.doi.org/10.4149/BLL_2015_016
Obor ORL, oftalmologie, stomatologie
Klíčová slova titanium alloys; thermal processing; precipitation grains
Popis 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 degrees 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).
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