TITANIUM-BASED ALLOY AND ITS PROCESSING METHOD FOR CREATING INTRAOSSEOUS IMPLANTS WITH HIGH BIOMECHANICAL COMPATIBILITY WITH BONE TISSUE Russian patent published in 2020 - IPC C22C14/00 C22C16/00 C22F1/18 B82Y40/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, namely to biocompatible alloys with mechanical behavior close to behavior of human bone tissue, and can be used for bearing structures of medical intraosseous implants. Titanium-based superelastic alloy contains, atm. %: zirconium 18–42, niobium 8–15, titanium – the rest, at that alloy has nano-susceptible structure and high-temperature metastable β-phase, which is in pre-martensite state. Method of thermomechanical treatment of superelastic titanium-based alloy includes homogenization annealing at 800–1000 ºC for 60–120 minutes, cold plastic deformation with degree of true deformation e=0.25–0.55, post-deformation annealing at 500–600 ºC for 30–60 minutes and cooling in water.

EFFECT: alloy is characterized by high biocompatibility with mechanical behavior close to behavior of bone tissue, as well as high durability.

2 cl, 1 dwg, 2 ex