Special features of thermomechanical behavior and structure formation of shape memory alloy Ti – 19 at.% Zr – 14 at.% Nb for medical applications are studied under the conditions of upsetting at 600 – 1000°C with strain rates 0.1, 1, and 10 sec^–1. The main parameters of the compressive stress–strain diagram are determined. Metallographic and x-ray diffraction analyses of the alloy are performed. The Vickers hardness of the specimens is measured. The alloy is shown to be well deformable under the conditions studied, and its sensitivity to the deformation rate is not high. Recommendations are developed for thermomechanical treatment of semiproducts from the Ti – Zr – Nb alloy.

在 600 – 1000°C 的镦锻条件下，研究了用于医疗应用的形状记忆合金 Ti – 19 at.% Zr – 14 at.% Nb 的热机械行为和结构形成的特性，应变率为 0.1、1 和 10秒^–1。确定压应力-应变图的主要参数。对该合金进行金相和 X 射线衍射分析。测量试样的维氏硬度。该合金在所研究的条件下显示出良好的可变形性，并且其对变形率的敏感性不高。针对 Ti-Zr-Nb 合金半成品的热机械处理提出了建议。