The Calculated and Experimental Elastic Properties of Quenched Biocompatible Ti–Nb, Ti–Nb–Zr, Ti–Nb–Zr–Sn, and Ti–Nb–Zr–Sn–Ta Titanium Alloys

• Published in: Physics of metals and metallography 2022-11, Vol.123 (11), p.1132-1138
• Main Authors: Korenev, A. A., Illarionov, A. G.
• Format: Article
• Language: English
• Subjects: Biocompatibility; Chemistry and Materials Science; Comparative analysis; Deformation; Diffraction; Diffusion; Elastic properties; Materials Science; Mathematical analysis; Metallic Materials; Niobium; Officials and employees; Phase Transformations; Quenching; Specialty metals industry; Structure; Titanium; Titanium alloys; Titanium base alloys; X-rays; Zirconium
• ISSN: 0031-918X; 1555-6190
• DOI: 10.1134/S0031918X22601196

The results of calculations of the elastic properties of quenched biocompatible titanium based Ti–26% Nb, Ti–26% Nb–3% Zr, Ti–26% Nb–6% Zr, Ti–26% Nb–3% Zr–1%Sn, and Ti–26% Nb–3% Zr–1% Sn–0.7Ta alloys (in at %) are presented and compared with the literature and experimental data on estimating the elasticity modulus of alloys by microindentation. Microstructural and X-ray diffraction analysis showed that the studied alloys subjected to quenching from the β-region contain a single-phase metastable solid β-solution prone to twinning under cold deformation as follows from the location of the alloys in the B o ‒ M d diagram. Good agreement has been established between the calculated and experimental values of the elastic properties, as characterized by an increase in the shear and Young moduli and a decrease in the Poisson coefficient with an increase in the molybdenum equivalent, which determines the stability of a solid alloy β‑solution.