Effect of substitutional element and interstitial oxygen in the structure, microstructure, in some selected mechanical properties and biocompatibility of the Ti-Mo-Zr system alloys

• Grant number: 13/09063-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: September 01, 2013
• End date: August 31, 2017
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Carlos Roberto Grandini
• Grantee: Raul Oliveira de Araújo
• Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

The most used titanium alloy in biological applications is the Ti-6Al-4V (% in weight), however there are reports that vanadium cause cytotoxic effects and adverse reactions in some tissues, while aluminum has been associated with neurological disorders. In this sense, there is a need of search for alloys with better mechanical properties and biocompatibility and the most promising titanium-based alloys are those that have niobium, zirconium, tantalum and molybdenum as alloying elements. The purpose of this project is to study the effect of the substitutional element in the structure, microstructure, some selected mechanical properties and biocompatibility of Ti-alloys-10Mo xZr (x = 5, 10, 15 and 20 % in weight). In parallel, the aim is also to investigate the influence of oxygen in solid solution in these alloys, in some selected mechanical properties, in particular hardness and elasticity modulus. This project is a continuation of the study of Ti-Mo system, in which at the Scientific Initiation with the support of FAPESP (grant 2008/ 00450-8) the candidate worked on preparation, characterization and studies on the effect of oxygen in the anelastic properties and biocompatibility of the Ti-15%Mo, and in the Master (grant 2011/03464-2, running), in which the student has prepared and characterized the Ti-25% Mo and Ti-30% Mo alloys and is studying the effect of oxygen in solid solution in their mechanical properties and biocompatibility. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

NESPEQUE CORREA, DIEGO RAFAEL; VICENTE, FABIO BOSSOI; ARAUJO, RAUL OLIVEIRA; LOURENCO, MARIANA LUNA; BAZAGLIA KURODA, PEDRO AKIRA; RABELO BUZALAF, MARILIA AFONSO; GRANDINI, CARLOS ROBERTO. Effect of the substitutional elements on the microstructure of the Ti-15Mo-Zr and Ti-15Zr-Mo systems alloys. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 4, n. 2, p. 180-185, APR-JUN 2015. (13/09063-5, 14/06221-1)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

ARAÚJO, Raul Oliveira de. Influence of zirconium and oxygen on the structure, microstructure and mechanical properties of alloys of the Ti-Mo-Zr system. 2017. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências. Bauru Bauru.