亚稳β钛合金的变形孪晶和应力诱发相变

The deformation behavior of metastable β titanium alloys is dependent on their deformation mechanisms. In fully stable β titanium alloys, dislocation slip is the only deformation mechanism, while additional deformation mechanisms such as {112}<111> twinning, stress-induced β→ω transformation, {332}<113> twinning and stress-induced β→α″ transformation occur with the decrease of β phase stability. In recent years great progress has been made in the study of these deformation mechanisms. The relationship between different deformation mechanisms, especially that between deformation twinning and stress-induced phase transformation, was revealed. In the present paper, the relative studies were reviewed and our perspective on the direction of future research efforts was provided.