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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

High strength biomedical Ti-13Mo-6Sn alloy: Processing routes, microstructural evolution and mechanical behavior

Full text
Author(s):
de Mello, Mariana G. [1] ; Salvador, Camilo A. F. [1] ; Fanton, Leonardo [1] ; Caram, Rubens [1]
Total Authors: 4
Affiliation:
[1] Univ Campinas UNICAMP, Sch Mech Engn, BR-13083860 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING; v. 764, SEP 9 2019.
Web of Science Citations: 0
Abstract

Metastable beta titanium alloys have been widely used in aerospace and biomedical applications thanks to their enhanced specific mechanical strength, low elastic modulus, high corrosion resistance and unique biocompatibility. To optimize the mechanical behavior of metastable beta Ti-Mo-Sn based alloys requires an in-depth understanding of the relationship between processing routes and resulting microstructures. This study focused on an investigation into phase transformations involving solute partitioning and its effect on the mechanical behavior of Ti-13Mo-6Sn alloy. Despite the low diffusivity of the alloying elements Mo and Sn in Ti, they affect solute partitioning to form col., and a phases. The refinement of a phase precipitation is strongly influenced by the heating rate applied to reach the aging temperature. Moreover, grain boundary a phase precipitation and precipitate-free zones are of paramount importance to the intergranular fracture mode in tensile tests. The results of this investigation also indicate that low elastic modulus (66 GPa) and adequate ultimate tensile strength (740 MPa) are achieved in Ti-Mo-Sn alloys. (AU)

FAPESP's process: 17/16715-0 - Evolution of rolling and recrystallization textures in a Ti-35Nb-7Zr-5Ta alloy and its effects on the growth of TiO2 nanotubes
Grantee:Leonardo Fanton
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 16/24693-3 - Non-classic Precipitation of Alpha Phase in Ti-Nb-Fe and Ti-Nb-Fe-Sn Alloys
Grantee:Rubens Caram Junior
Support Opportunities: Regular Research Grants