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EBSP study of the annealing behavior of aluminum deformed by equal channel angular processing
- Source :
-
Materials Science & Engineering: A . Nov2003, Vol. 360 Issue 1/2, p420. 6p. - Publication Year :
- 2003
-
Abstract
- Commercial purity aluminum (99.5%) was fabricated by equal channel angular pressing (ECAP) up to total accumulated strains of approx. 10. The annealing behavior of material deformed to total strains of approx. 1 and 10 was investigated, using heat treatments of 2 h at various temperatures from 100 to 500 °C. The microstructure of the annealed materials was characterized using the electron back-scatter pattern technique. A number of parameters were determined including the distribution and average values of both the boundary spacings and misorientations. For samples deformed to a total strain of 1, annealing resulted in discontinuous recrystallization. For samples deformed to a total strain of 10, annealing resulted in microstructures exhibiting characteristics of both uniform coarsening and, in a number of places, of discontinuous recrystallization. An attempt was made, based on the boundary spacing distributions, to separate these two components. The grain size after annealing was still however small, being just 6.4 μm after 2 h at 300 °C. [Copyright &y& Elsevier]
- Subjects :
- *ALUMINUM
*DEFORMATIONS (Mechanics)
*OSTWALD ripening
*CRYSTALLIZATION
Subjects
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 360
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 10806260
- Full Text :
- https://doi.org/10.1016/S0921-5093(03)00508-2