Investigation of cast and annealed Ti25Nb10Zr alloy as material for orthopedic devices

Investigation of cast and annealed Ti25Nb10Zr alloy as material for orthopedic devices

Bibliographic Details
Parent link:Journal Of Materials Research and Technology-JMR&T
Vol. 8, iss. 4.— 2019.— [P. 3399-3414]
Corporate Author: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий Научно-исследовательский центр "Физическое материаловедение и композитные материалы"
Other Authors: Bolmaro R. Raul, Parau A. C. Anca Constantina, Pruna V. Vasile, Surmeneva M. A. Maria Alexandrovna, Constantin L. R. Lidia, Avalos M. Martina, Kotrut M. K. Mikhay Kosmin, Tutuianu R. Raluca, Braic M. Mariana, Cojocaru Danut D. V., Dan I. Ioan, Croitoru S. Sorin, Surmenev R. A. Roman Anatolievich, Vladesku A. Alina
Summary:Title screen
In the present work, we report the preparation of a novel titanium-based alloy, namelyTi25Nb10Zr, by cold crucible levitation melting technique. The cast alloy consists of acomplex microstructure with large Beta phase grains (54%, 50-150 [mu]m) with a regularly con-nected net of Alpha (orthorhombic, 46%) phase running along boundaries and across thegrains and keeping a regular misorientation with respect to the Beta phase. An intermeshed 51% Alpha and 49% Beta phases with lamellar microstructure were found by annealing. Theelectrochemical tests showed that both alloys were affected by the corrosion process. Agood corrosion resistance in SBF at 37°С was found for the cast form. The cast alloy is moreresistant when immersed into solutions with pH2 and pH7, while the annealed one is resis-tant in pH5 solution. Surface potential of both alloys is negative, with the annealing processleading to a slight decrease of that property. Collectively, the biological results indicate amore favorable viability on cast form as compared to annealed one, suggesting that the castalloy is promising for biomedical applications.
Language:English
Published: 2019
Subjects:
электронный ресурс
труды учёных ТПУ
corrosion resistance
SBF
surface potential
viability
коррозионная стойкость
поверхностный потенциал
сплавы титана
жизнеспособность
биомедицинские сплавы
Online Access:https://doi.org/10.1016/j.jmrt.2019.06.006
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664067

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