Registration Number
0225U005371,
(0125U002895)
, R & D reports
Title
Physical and technological synthesis principles of Ti-Zr-Nb-Hf alloys for medical purposes
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Розробка технології отримання сплавів системи Zr-Ti-Nb-Hf з контрольованою пористістю з використанням гідридного порошкового підходу
Head
Oryshych Denys V., Доктор філософії
Registration Date
31-12-2025
Organization
Institute of Metal Physics. G.V. Kurdyumov of the National Academy of Sciences of Ukraine
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Establishing general synthesis patterns of Zr-Ti-Nb-Hf alloys from multicomponent systems of hydrogenated powders; determining factors and mechanisms of influence on synthesis processes to obtain structural-phase states, the physical and mechanical characteristics of which are sufficient for practical use and production of starting material for the production of parts by additive technologies.
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The features of the synthesis of biocompatible materials based on the Ti-Zr-Nb-Hf system were investigated. The dependence of the elastic modulus, porosity and mechanical properties on different hafnium contents in the system was shown. It was shown that despite the complete completion of the sintering processes at a temperature of 1250 °C, significant residual porosity was observed in the materials. Thus, in the Zr-Ti-Nb alloy, it was within 5.4-5.8%. When 5% HfHx was added to the powder mixture, the porosity increased to 8.4-9.3%. With a further increase in the amount of hafnium hydride in the powder mixture to 10%, the residual porosity was 8.0-8.4%. A further increase in hafnium to 15% leads to a decrease in the residual porosity to values of 4.9-6.3%.
It was determined that for the Zr-Ti-Nb system it was 69.30 GPa. When 5% HfHx was added to the initial powder mixture, this figure was 75.15 GPa. With a further increase in HfHx to 10%, the elastic modulus dropped to 71.51 GPa, and with the addition of 15%, a drop in Young's modulus values to 64.72 GPa was observed.
Product Description
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Denys V. Oryshych
Stasiuk Oleksandr O.
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2025-12-31
