| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1654508 | Materials Letters | 2006 | 4 Pages |
Abstract
Laser surface remelting followed by heat treatments at 1000 °C for different time was carried out on γ-TiAl based alloy. The characteristics of structural transformation of laser surface remelted γ-TiAl based alloy were investigated by high-temperature microscope, TEM and XRD. The results show that the phase transformation (α2 → γ) in TiAl alloy occurred at the earlier stage of post-heat treatment, and the dendritic structure transformed firstly at the intergranular, then expanded into the transgranular, finally changed to ultrafine equiaxed grain structure, at the same time, micro-hardness of laser-surface remelted γ-TiAl based alloy had the corresponding change with the structural transformation.
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Authors
G.Q. Wu, G.X. Luo, Z. Huang, Z.J. Ruan,