Phase-field model during static recrystallization based on crystal-plasticity theory
- 373 Downloads
A numerical model and computational procedure for static recrystallization are developed using a phase-field method coupled with crystal-plasticity theory. In this model, first, the microstructure and dislocation density during the deformation process of a polycrystalline metal are simulated using a finite element method based on strain-gradient crystal-plasticity theory. Second, the calculated data are mapped onto the regular grids used in the phase-field simulation. The stored energy is calculated from the dislocation density and is smoothed to avoid computational difficulty. Furthermore, the misorientation required for nucleation criteria is calculated at all grid points. Finally, phase-field simulation of the nucleation and growth of recrystallization is performed using the mapped data. By performing a series of numerical simulations based on the proposed numerical procedure, it has been confirmed that the recrystallization microstructure can be reproduced from the deformation microstructure.
KeywordsStatic recrystallization Phase-field method Crystal-plasticity Coupled numerical model
Unable to display preview. Download preview PDF.
- 1.Raabe, D.: Computational Materials Science. Federal Republic of Germany (1998)Google Scholar
- 2.Humphreys, F.J., Hatherly, M.: Recrystallization and Related Annealing Phenomena, 2nd edn. Elsevier (2004)Google Scholar
- 16.Higa, Y., Sawada, Y., Tomita, Y.: Computational simulation of characteristic length dependent deformation behavior of polycrystalline metals. Trans. JSME A69, 523–529 (in Japanese) (2003)Google Scholar
- 24.Nakamachi, E., Ariyoshi, T., Kobayashi, Y., Hirose, M., Morimoto, H.: SEM-EBSD experimental and finite element analyses of plastic deformation induced crystal rotation of pure aluminium single crystals. Trans. Japan Soc. Mech. Eng. A 69, 817–822 (2003)Google Scholar