Fabrication of Biocompatible Ti‐Nb‐Sn Through Powder Metallurgy Route for Orthopedic Implants

Abstract

Ti alloys are one of the most commonly used structural biomaterials due to their unique properties, such as high specific strength, superior biocompatibility, excellent corrosion, and adequate mechanical properties. The present work involves designing and fabrication of suitable ternary Ti-Nb-Sn alloy compositions, with low elastic modulus, through a combination of Density Functional Theory (DFT) calculations and powder metallurgy route. Designed alloys consist of stable Ti-Nb-Sn system with low elastic modulus that can reduce 'stress shielding effect'. These ternary Ti-Nb-Sn alloys were characterized using XRD for phase analysis, SEM-EBSD for microstructural characterization and tensile test for mechanical properties. It is envisaged that these designed Ti-Nb-Sn alloy compositions using first principles calculations and fabricated through P/M route would be a potentially good candidate for orthopedic implants.