The formation of shear bands during hot deformation of a two-phase (α2 + γ) titanium aluminide and its consequences on dynamics softening has been investigated. The starting material consists of a colony of lamellar grains along with the segregated vanadium and niobium which was subjected to hot deformation in the temperature range 1000–1175 °C at the strain rate 10 s−1. Microstructures of the deformed samples indicate that, with increase in the deformation temperature, the orientation of shear bands changes. Moreover, the extent of dynamic recrystallization also increases with deformation temperature. The softening behaviour and crystallographic orientation change within lamellae during hot deformation have been explored. The nucleation of newly recrystallized grains has been observed at twin–parent grain boundary and within the twined γ phase. Lamellae of the γ and α2 phase have been also observed to be twisted and tilted, leading to the band formations under the load, whose mechanisms have also been explored in the present study.

剪切带的两相（α的热变形过程中形成2 +γ）铝化钛和其上的动态后果软化进行了研究。起始材料由层状晶粒以及分离的钒和铌组成，这些钒和铌在1000-1175°C的温度范围内以10 s -1的应变速率经受热变形。。变形样品的微观结构表明，随着变形温度的升高，剪切带的方向发生变化。而且，动态再结晶的程度也随着变形温度而增加。已经探究了热变形过程中薄片内部的软化行为和晶体学取向变化。在孪晶-双晶晶界和孪晶γ相内观察到了新再结晶晶粒的形核。α的γ的和薄片2相也已观察到被扭曲和倾斜，导致的负载，其机制也已经在本研究探讨下带地层。