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http://repositorio.unicamp.br/jspui/handle/REPOSIP/349643
Type: | Artigo |
Title: | Microstructure and mechanical properties of Ti-12Mo-8Nb alloy hot swaged and treated for orthopedic applications |
Author: | Nunes, Aline Raquel Vieira Gabriel, Sinara Borborema Nunes, Carlos Angelo Araújo, Leonardo Sales Baldan, Renato Mei, Paulo Malet, Loïc Dille, Jean Almeida, Luiz Henrique de |
Abstract: | Metastable β-type Ti alloys with non-toxic addition elements such as Mo, Zr, Sn, Ta and Nb were developed as an alternative to the widely used Ti-6Al-4V alloy for biomedical applications. These alloys possess enhanced biocompatibility and reduced elastic modulus in comparison with Ti-6Al-4V. Moreover, for orthopedic implants, low Young's modulus is required in order to avoid the stress shielding phenomenon. This study analyzes the microstructure and mechanical properties of a new Ti-12Mo-8Nb alloy after hot swaging, annealing at 950 ºC for 1h and water quenching. The alloy was characterized by X-ray diffraction, optical microscopy and transmission electron microscopy. Tensile tests were performed at room temperature. Young's modulus and hardness values were also measured. The structural characterization reveals a metastable β structure containing only a small amount of α and ω phases. Exhibiting a lower Young's modulus than Ti-6Al-4V and other previously studied Ti-Mo-Nb alloys, the Ti-12Mo-8Nb alloy can be a promising alternative for orthopedic application |
Subject: | Ligas de titânio Microestrutura |
Country: | Brasil |
Editor: | UFSCar/Departamento de Engenharia de Materiais |
Rights: | Aberto |
Identifier DOI: | 10.1590/1980-5373-mr-2017-0637 |
Address: | https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800526 |
Date Issue: | 2017 |
Appears in Collections: | FEM - Artigos e Outros Documentos |
Files in This Item:
File | Description | Size | Format | |
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S1516-14392017000800526.pdf | 1.02 MB | Adobe PDF | View/Open |
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