Modeling the microstructural changes during hot tandem rolling of AA5XXX aluminum alloys. Part 2: Textural evolution
- Univ. of British Columbia, Vancouver, British Columbia (Canada). Centre for Metallurgical Process Engineering
- Alcan International Limited, Kingston, Ontario (Canada). Kingston Research and Development Centre
In Part 2 of this article, the experimental work undertaken to measure the effect of deformation parameters (temperature, strain, and strain rate) on the texture formation during hot deformation and the evolution during subsequent recrystallization is described. In addition, the isothermal kinetics of development of individual texture components were also determined. A neutron diffractometer was used to measure the texture in the as-hot-deformed aluminum samples, and the samples were then heat treated in a 400 C salt bath for various lengths of time, with the texture being remeasured at various stages in the recrystallization process. Using data from the experimental program, the texture evolution during recrystallization was modeled by applying a modified form of the Avrami equation. Results indicated that, of the deformation parameters studied, textural development was most sensitive to the deformation temperature for both alloys. In addition, modeling results revealed that the Cu component ({l_brace}112{r_brace}<111>) was the first to recrystallize, typically followed by the S ({l_brace}1232{r_brace}<634>) and Bs ({l_brace}110{r_brace}<112>) components. This is in agreement with earlier work which indicated that the Bs component was the hardest to recrystallize, possibly because it is able to deform on very few slip systems and, hence, the dislocation interaction may be low.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 634654
- Journal Information:
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 29, Issue 3; Other Information: PBD: Jun 1998
- Country of Publication:
- United States
- Language:
- English
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