Phase transformations, omega phase precipitation and properties of Ti-Nb-Sn alloys

• Grant number: 07/04013-9
• Support Opportunities: Regular Research Grants
• Duration: February 01, 2010 - July 31, 2010
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Rubens Caram Junior
• Grantee: Rubens Caram Junior
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The aim of this research is to study titanium alloys with beta-stabilizer elements for using in orthopedic implants. The combination of properties, such as low density, high mechanical strength, excellent fatigue resistance, good corrosion resistance and great biocompatibility makes beta titanium alloys appropriated for applications as implants. The work will be developed by obtaining, processing and characterizing Ti-Nb alloys with Sn additions, as well as analyzing omega phase precipitation. This study will be developed by means of the following procedure: (a) Obtaining Ti alloys in arc furnace; (b) Application of mechanical, homogenizing and quenching heat treatments; (c) Application of ageing heat treatments; (d) Microstructure evaluation; (e) Mechanical behavior evaluation by using acoustics tests; (f) Mechanical behavior evaluation by using hardness tests and (g) Mechanical behavior evaluation by using tensile tests. (AU)