Abstract
This work is devoted to the study of the hardness of various compositions of TiNbTa alloys for medical applications in the hip joints. This TiNbTa alloy system has a shape memory effect and superelasticity. The paper describes the technology for producing plates 1 mm thick of TiNbTa alloys. Carrying out thermal and mechanical treatments of these alloys. The effect of Nb doping on the structure and hardness of TiNbTa alloys is shown.</jats:p