The effect of the microstructure formed in different stages of softening under annealing after moderate cold deformation on martensitic transformations and functional properties of alloy Ti – 50.2 at.% Ni used for actuators is studied. The work consists of two ports. The first part presents the results of diffraction and calorimetric studies reflecting the influence of a long hold (10 h) at the temperature of effective aging (430°C) on the characteristic temperatures of martensitic transformations. The second part is devoted to the influence of structural evolution and martensitic transformations on the characteristics of shape recovery. The conditions of implementation of anomalously high characteristics of shape recovery induced by nonisothermal loading are determined and analyzed.

研究了在适度冷变形后退火软化的不同阶段形成的微观结构对用于致动器的 Ti – 50.2 at.% Ni 合金的马氏体转变和功能性能的影响。工作由两个端口组成。第一部分介绍了衍射和量热研究的结果，反映了在有效时效温度 (430°C) 下长时间保持 (10 小时) 对马氏体转变特征温度的影响。第二部分致力于结构演化和马氏体转变对形状恢复特性的影响。确定和分析了非等温加载引起的形状恢复异常高特性的实现条件。