Investigation of cast and annealed Ti25Nb10Zr alloy as material for orthopedic devices
| Parent link: | Journal Of Materials Research and Technology-JMR&T Vol. 8, iss. 4.— 2019.— [P. 3399-3414] |
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| Andre forfattere: | , , , , , , , , , , , , , |
| 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. |
| Sprog: | engelsk |
| Udgivet: |
2019
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| Fag: | |
| Online adgang: | https://doi.org/10.1016/j.jmrt.2019.06.006 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664067 |