Modern Problems of Materials Science

Effect of Powder Type on Microstructure and Mechanical Properties of Biocompatible Ti-Zr-Nb-Ta Alloy

Oleksandr Stasiuk1, Denys Oryshych1, Serhii Taran2

1. G. V. Kurdyumov Institute for Metal Physics of NAS of Ukraine
2. Interregional academy of personal management, Ukraine

https://doi.org/10.15407/msse2025.01.059

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Keywords

Zr-Nb-Ta alloy, powder metallurgy, pre-alloyed powder, porosity, mechanical properties

Abstract

A biocompatible Ti-Zr-Nb-Ta alloy was produced via powder metallurgy. Using blended powders led to high porosity and undissolved Ta due to low diffusion. The pre-alloyed powder approach reduced porosity (~3%) and improved homogenization. As a result, strength reached 1053 MPa, yield strength 1005 MPa, and ductility ~16%. Pre-alloying enhances mechanical performance of titanium-based biomaterials.

References

  1. Geetha M., Singh A. K., Asokamani R., and Gogia A. K. Ti based biomaterials, the ultimate choice for orthopaedic implants – A review // Prog. Mater. Sci. – 2009. – 54 (3). – 397–425. https://doi.org/10.1016/j.pmatsci.2008.06.004.
  2. Niinomi Mitsuo. Mechanical properties of biomedical titanium alloys // Mater. Sci. Eng. A. – 1998. – 243 (1-2). – P. 231–36. https://doi.org/10.1016/s0921-5093(97)00806-x.
  3. Taddei Elisa B., Vinicius André Rodrigues Henriques, Cosme Roberto Moreira Silva, Carlos Alberto Alves Cairo. Characterization of Ti-35Nb-7Zr-5Ta alloy produced by powder metallurgy // Mater. Forum. – 2005. – 498–499. – P. 34–39. https://doi.org/10.4028/www.scientific.net/msf.498-499.34.
  4. Dictra database. – https://thermocalc.com/products/add-on-modules/diffusion-module-dictra/