A Comparative Analysis of New Ti-Nb-Zr-Ta Orthopedic Alloys

Abstract:

Ti-Nb-Zr-Ta alloys represent a new generation of biomaterials with possible applications in the orthopedic field, being developed in order to eliminate the negative aspects of the current orthopedic biomaterials, which consist mainly in a low biocompatibility with human tissues and high values of modulus of elasticity compared to the human bone. This paper presents a comparative study of new titanium alloys, corresponding to the Ti-Nb-Zr-Ta system: Ti-21Nb-6Zr-15Ta and Ti-25Nb-10Zr-8Ta, which were analyzed by scanning electron microscopy, X-ray diffraction and microindentation. The both alloys are classified as near-β alloys. The addition of alloying elements such as Ta, Nb and Zr represents a good solution for lowering modulus of elasticity, which is an important factor for reducing bone resorption and therefore for preventing implant failure.

• Periodical: Advanced Materials Research (Volume 837)
• Pages: 259-264
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.837.259
• Online since: November 2013
• Authors: Andreea Carmen Bărbînţă, Romeu Chelariu, Marcelin Benchea, Carmen Iulia Crimu, Sorin Iacob Strugaru, Corneliu Munteanu
• Keywords: Microindentation, Scanning Electron Microscope (SEM), Ti-21Nb-6Zr-15Ta, Ti-25Nb-10Zr-8Ta, X-Ray Diffraction (XRD)

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