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Crystal plasticity finite element analysis of influence of initial crystal orientation on texture evolution and deformation heterogeneity of cold-rolled aluminium

Conference Paper


Abstract


  • The crystallographic orientation has a profound influence on the deformation behavior, recrystallization behavior and mechanical properties of metals and alloys. During the rolling process, the crystallographic orientation is rotated relative to surroundings and the original orientation, which will lead to deformation bands and heterogeneous plastic flow. In the present study, a crystal plasticity finite element method (CPFEM), which incorporates the crystal plasticity constitutive equations into the finite element method, has been employed to investigate the influence of initial orientation on texture evolution during cold rolling of aluminum. In order to avoid the influence of grain boundary, aluminum single crystals initially oriented with {110}<001>, {001}<100> and {011}<011> has been studied. From this finite element analysis, it can be observed that the crystals rotate predominantly around the transverse direction during rolling and the initial orientation has an obvious influence on the rotation amplitude. The corresponding {111} pole figures provide a clear evidence of orientation spread around the transverse direction. The predicted texture evolutions have been confirmed by the previously reported experimental results of aluminum single crystals with the same initial crystallographic orientations.

Publication Date


  • 2012

Citation


  • Deng, G., Lu, C., Su, L., Tieu, A. Kiet., Yu, H., Si, L., Liu, X. & Zhu, H. (2012). Crystal plasticity finite element analysis of influence of initial crystal orientation on texture evolution and deformation heterogeneity of cold-rolled aluminium. Proceedings of the 14th International Conference of Metal Forming (pp. 1119-1122). Germany: Wiley - V C H Verlag GmbH & Co KGaA.

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/399

Start Page


  • 1119

End Page


  • 1122

Abstract


  • The crystallographic orientation has a profound influence on the deformation behavior, recrystallization behavior and mechanical properties of metals and alloys. During the rolling process, the crystallographic orientation is rotated relative to surroundings and the original orientation, which will lead to deformation bands and heterogeneous plastic flow. In the present study, a crystal plasticity finite element method (CPFEM), which incorporates the crystal plasticity constitutive equations into the finite element method, has been employed to investigate the influence of initial orientation on texture evolution during cold rolling of aluminum. In order to avoid the influence of grain boundary, aluminum single crystals initially oriented with {110}<001>, {001}<100> and {011}<011> has been studied. From this finite element analysis, it can be observed that the crystals rotate predominantly around the transverse direction during rolling and the initial orientation has an obvious influence on the rotation amplitude. The corresponding {111} pole figures provide a clear evidence of orientation spread around the transverse direction. The predicted texture evolutions have been confirmed by the previously reported experimental results of aluminum single crystals with the same initial crystallographic orientations.

Publication Date


  • 2012

Citation


  • Deng, G., Lu, C., Su, L., Tieu, A. Kiet., Yu, H., Si, L., Liu, X. & Zhu, H. (2012). Crystal plasticity finite element analysis of influence of initial crystal orientation on texture evolution and deformation heterogeneity of cold-rolled aluminium. Proceedings of the 14th International Conference of Metal Forming (pp. 1119-1122). Germany: Wiley - V C H Verlag GmbH & Co KGaA.

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/399

Start Page


  • 1119

End Page


  • 1122