Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1601287 | Intermetallics | 2009 | 13 Pages |
Abstract
The variation in cooling rates of Ti–46.8Al–1.7Cr–1.8Nb (at. %) alloy from the high-temperature α domain produces lamellar, Widmanstätten, feathery-like (α2 + γ) structures, as well as γ-massive phase, often coexisting together. Earlier reported crystallographic and morphological details of each of these structures are compiled together and a combined view on the generation of their crystallographic related possible variants and their solid phase transformation mechanisms is proposed. Sympathetic nucleation is suggested as a common mechanism for the lamellar structure at slow cooling rate, the Widmanstätten structure and the feathery-like structure.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
S.R. Dey, A. Hazotte, E. Bouzy,