Polycrystal Simulations of Texture Evolution during Deformation Processing
Some recent research on the hot deformation of aluminum alloys has indicated that at elevated temperatures, slip occurs on {110}<110> systems in addition to the usual {111}<110> systems active at lower temperatures. The effect of these additional slip systems on the texture evolution of aluminum single and polycrystals is studied using finite element simulations. The crystals are deformed in plane strain compression, and the constitutive response is modeled using crystal plasticity to track the reorientation of the crystals. By discretizing each crystal with a large number of elements, the non-uniform deformations due to local inhomogeneities and interactions with neighboring crystals are modeled. The resulting textures and microstructures are examined with regard to effect of including the additional systems, initial orientation of the single crystals, and stability of the cube orientation.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
- Sponsoring Organization:
- USDOE Office of Energy Researc
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 1285
- Report Number(s):
- ORNL/CP-98361; B&R KC0201050; ON: DE00001285
- Country of Publication:
- United States
- Language:
- English
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