Thermomechanical Processing of a Biocompatible Ti-Ta-Nb Alloy

Abstract:

The design of novel Ti-based alloys for biomedical load-bearing implant application, such as hip or knee prostheses, aims at providing structural materials which are characterized by good corrosion stability in the human body, high fatigue resistance, high strength-to-weight ratio, good ductility, low elastic modulus, excellent wear resistance, low cytotoxicity and a negligible tendency to provoke allergic reactions. Low elastic modulus is required to be close to that of a human bone, in order to transfer the adequate mechanical stress to the surrounding bone. The Young’s modulus of biomaterials is desired to be equal to that of cortical bone because if the Young’s modulus of biomaterials is much greater than that of cortical bone, bone resorption occurs. Investigated samples were subjected to mechanical tests, having provided these mechanical properties: ultimate tensile strength (σ_UTS), yield strength (σ_YS), elongation to fracture (ε_f) and elastic modulus (E).

• Periodical: Solid State Phenomena (Volume 188)
• Pages: 59-64
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.188.59
• Online since: May 2012
• Authors: Doina Raducanu, Vasile Danut Cojocaru, Ion Cinca, Ioan Dan
• Keywords: Mechanical Property, Titanium Alloy, β-Structures

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