Control of the Microhardness to Young Modulus Ratio by Mechanical Processing of a Ti-10Mo-20Nb Alloy
AUTOR(ES)
Gabriel, Sinara Borborema, Rezende, Mônica Costa, Almeida, Luiz Henrique de, Nunes, Carlos Angelo, Dille, Jean, Soares, Glória de Almeida
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
23/10/2015
RESUMO
β-metastable titanium alloys with high strength to Young’s modulus ratio have been developed by different authors aiming their use as biomaterials for hard tissue replacement. However, it is not easy to combine low elastic modulus with high mechanical strength. In this work, a β-Ti alloy (Ti-10Mo-20Nb) was produced by arc-melting, then homogenized, cold swaged and aged in order to obtain fine α-Ti precipitates in a β-Ti matrix. The microstructures were characterized by transmission electron microscopy and X-ray diffraction. Mechanical properties characterization was based on Vickers microhardness tests and Young’s modulus measurements. The cold swaged material subjected to an ageing treatment at 500 °C for 4 h showed the highest hardness/ Young’s modulus ratio, associated to very fine α phase precipitates in a β-Ti matrix.
Documentos Relacionados
- Mechanical Characterization of Ti–12mo–13nb Alloy for Biomedical Application Hot Swaged and Aged
- Cell and Bacteria-Baterial Interactions on the Ti10Mo8Nb Alloy After Surface Modification
- Microstructure and Mechanical Properties of Ti-12Mo-8Nb Alloy Hot Swaged and Treated for Orthopedic Applications
- Dynamical Elastic Moduli of the Ti-13Nb-13Zr biomaterial alloy by mechanical spectroscopy
- Microstructure and transformation characteristics of a TiAlNb alloy with Cr and Mo addition