Investigation of cast and annealed Ti25Nb10Zr alloy as material for orthopedic devices
| Autor: | Vasile Pruna, M. Avalos, Raul Eduardo Bolmaro, Danut V. Cojocaru, Cosmin Mihai Cotrut, Mariana Braic, Roman A. Surmenev, Anca C. Parau, Ioan Dan, Sorin Mihai Croitoru, Lidia R. Constantin, Alina Vladescu, Maria A. Surmeneva, Raluca Tutuianu |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:TN1-997
Materials science Misorientation Annealing (metallurgy) Alloy chemistry.chemical_element SBF 02 engineering and technology engineering.material SURFACE POTENTIAL 01 natural sciences Corrosion Biomaterials 0103 physical sciences Lamellar structure lcsh:Mining engineering. Metallurgy 010302 applied physics Metallurgy Metals and Alloys 021001 nanoscience & nanotechnology Microstructure VIABILITY Surfaces Coatings and Films CORROSION RESISTANCE purl.org/becyt/ford/2 [https] chemistry Ceramics and Composites engineering Orthorhombic crystal system purl.org/becyt/ford/2.5 [https] 0210 nano-technology Titanium |
| Zdroj: | Journal of Materials Research and Technology, Vol 8, Iss 4, Pp 3399-3414 (2019) CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| ISSN: | 2238-7854 |
| Popis: | In the present work, we report the preparation of a novel titanium-based alloy, namely Ti25Nb10Zr, by cold crucible levitation melting technique. The cast alloy consists of a complex microstructure with large Beta phase grains (54%, 50-150 μm) with a regularly connected net of Alpha′ (orthorhombic, 46%) phase running along boundaries and across the grains 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. The electrochemical tests showed that both alloys were affected by the corrosion process. A good corrosion resistance in SBF at 37 °C was found for the cast form. The cast alloy is more resistant when immersed into solutions with pH2 and pH7, while the annealed one is resistant in pH5 solution. Surface potential of both alloys is negative, with the annealing process leading to a slight decrease of that property. Collectively, the biological results indicate a more favorable viability on cast form as compared to annealed one, suggesting that the cast alloy is promising for biomedical applications. Fil: Bolmaro, Raul Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina Fil: Parau, Anca C.. National Institute of Research and Development for Optoelectronics; Rumania Fil: Pruna, Vasile. Romanian Academy. Institute of Cellular Biology and Pathology Nicolae Simionescu; Rumania Fil: Surmeneva, Maria A.. National Research Tomsk Polytechnic University; Rusia Fil: Constantin, Lidia R.. National Institute of Research and Development for Optoelectronics; Rumania Fil: Avalos, Martina Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina Fil: Cotrut, Cosmin M.. National Research Tomsk Polytechnic University; Rusia. University Politehnica of Bucharest; Rumania Fil: Tutuianu, Raluca. Romanian Academy. Institute of Cellular Biology and Pathology Nicolae Simionescu; Rumania Fil: Braic, Mariana. National Institute of Research and Development for Optoelectronics; Rumania Fil: Cojocaru, Danut V.. National Research Tomsk Polytechnic University; Rusia Fil: Dan, Ioan. SC R&D Consulting and Services; Rumania Fil: Croitoru, Sorin. Tehnomed Impex Co; Rumania Fil: Surmenev, Roman A.. Romanian Academy. Institute of Cellular Biology and Pathology Nicolae Simionescu; Rumania Fil: Vladescu, Alina. National Institute of Research and Development for Optoelectronics; Rumania. Romanian Academy. Institute of Cellular Biology and Pathology Nicolae Simionescu; Rumania |
| Databáze: | OpenAIRE |
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