Abstract

Abstract The dynamic behavior of TiAl intermetallic compounds during tensile deformation has been determined by the different appearance of the (α2 + γ) lamellar structure using the acoustic emission (AE) method. The AE events of these materials are obviously different. There is, however, no effectively direct evidence to prove the relationship between the microstructure of these TiAl alloys and the AE behavior. In this paper, the effect of the interfaces on the transmitted wave are calculated quantitatively. According to these results, the effects of the microstructure of TiAl alloys on the AE behavior have been clarified.

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