Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1571758 | Materials Characterization | 2010 | 6 Pages |
Abstract
Deformation-induced α2 → γ phase transformation in high Nb containing TiAl alloys was investigated using high-resolution transmission electron microscopy (HREM) and energy dispersive X-ray spectroscopy (EDS). The dislocations appearing at the tip of deformation-induced γ plate (DI-γ) and the stacking sequence change of the α2 matrix were two key evidences for determining the occurrence of the deformation-induced α2 → γ phase transformation. Compositional analysis revealed that the product phase of the room-temperature transformation was not standard γ phase; on the contrary, the product phase of the high-temperature transformation was standard γ phase.
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Materials Science (General)
Authors
C.L. Chen, W. Lu, Dai Sun, L.L. He, H.Q. Ye,