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Article
Three dimensional elasto-plastic phase field simulations of martensitic transformation in Fe-C polycrystalline alloy
| Authors: |
Malik, A.M., Amberg, G.A., Borgenstam, A.B, Ågren, J.Å |
| Document Type: |
Conference |
| Pubstate: |
Published |
| Journal: |
Materials Science & Technology 2011 |
| Volume: |
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| Year: |
2012 |
AbstractThe Phase Field (PF) Microelasticity model proposed by A.G. Khachaturyan is used to perform three-dimensional simulations of Martensitic Transformation (MT) in polycrystal using finite element method (FEM). The effect of plastic accommodation is investigated by using a time dependent Ginzburg-Landau (TDGL) equation for evolution of plastic deformation. In this paper, PF simulations are performed in 2D and 3D for different initial and boundary conditions to simulate FCC-to-BCT martensitic transformation in Fe-0.3%C polycrystalline alloy. The simulation results depict that the introduction of plastic accommodation reduces the stress intensity in the parent phase and hence causes an increase in volume fraction of the martensitic phase. Simulation results also show that martensitic transformation nucleates at the grain boundaries and grow into the parent phase. It has been concluded that stress distribution and the evolution of microstructure can be predicted in a polycrystalline alloy with the current model.
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