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通过研究ＴｉＡｌ基合金全层片组织试样在高温形变过程中的显微组织结构变化，来探讨高温形变动态损伤过程。研究表明，动态再结晶形成的γ相晶粒与α２／γ晶团组成的晶隅存在，以及这种晶隅上的晶界面变形不协调发展而导致大量缺陷产生，是试样发生动态损伤的主要原因
The dynamic damage process of high-temperature deformation was investigated by studying the microstructure changes of TiAl-based all-layer microstructure specimens during high-temperature deformation. The results show that the dynamic recrystallization of the γ-phase grains and α2 / γ ingot composition of the existence of the crystal corner, and the crystal grain boundary deformation on the uncoordinated development led to a large number of defects, the dynamic occurrence of the sample is damaged main reason