Journal article
Development of Goss texture in Al–0.3%Cu annealed after heavy rolling
Chongqing University1
Department of Mechanical Engineering, Technical University of Denmark2
Materials and Surface Engineering, Department of Mechanical Engineering, Technical University of Denmark3
Materials science and characterization, Department of Wind Energy, Technical University of Denmark4
The evolution of the microstructure and texture during annealing has been studied in the center layer of 95% cold rolled Al–0.3%Cu with a large initial grain size. The cold-rolled condition is characterized by a strong Brass texture component and a deformed microstructure comprising lamellar structures intersected by a large number of shear bands.
Recrystallization and precipitation take place during annealing at 200 °C, and a strong Goss texture develops. In the beginning of recrystallization, Goss oriented grains nucleate preferentially at the shear bands. At a later stage of recrystallization, new Goss nuclei can appear in regions where lamellae of the dominant Brass component are interspersed with Goss-oriented subgrains.
When recrystallization is almost complete, recrystallized Goss-oriented grains grow into grains of other orientations, which results in a rapid increase in the average grain size of Goss-oriented grains and strengthening of the Goss texture. As a result, new low angle boundaries are formed between Goss-oriented grains in this strongly textured material.
Language: | English |
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Year: | 2018 |
Pages: | 399-405 |
ISSN: | 18734669 and 09258388 |
Types: | Journal article |
DOI: | 10.1016/j.jallcom.2018.03.187 |
ORCIDs: | Huang, X. and Mishin, O. V. |