Scientific Approaches to the Development of Titanium-Based Alloys for Medical Implants

Abstract:

One of the main problems with the use of metal implants is mechanical resorption, due to a significant difference in Young's moduli of bone tissue and metal material. This paper provides an overview of the main approaches for developing and optimizing the compositions of low-modulus alloys for medical implants. The choice of the base metal of such alloys – titanium, combining a low Young's modulus with complete biological inertness, -- is substantiated. Based on the analysis and systematization of the available literature data, the issues of choosing the optimal alloying to achieve a low Young's modulus, while maintaining biological compatibility, are considered. The main attention is paid to the Ti-Nb-Zr- (Ta, Sn) system as providing the maximum potential for reducing the Young's modulus. In addition, the importance of obtaining a certain structural and textural state in the product to further reduce the Young's modulus is noted.

• Periodical: Solid State Phenomena (Volume 299)
• Pages: 462-467
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.299.462
• Online since: January 2020
• Authors: Anatoliy G. Illarionov*, Stella V. Grib, Artem Yurovskikh
• Keywords: Low-Modulus Titanium Alloys, Texture, Young Modulus

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