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An efficient and accurate numerical algorithm called active parameter tracking algorithm (S. Vedantam and B. S. V. Patnaik, Physical Review E, 73, 016703, 2006) have been used to study the effect of grain boundary energy anisotropy on grain growth in polycrystalline materials. In phase field simulation of grain growth, a large number of field variables are required to describe each individual grain. Therefore, the consideration of wide range of grain orientation was not accounted so far in the literatures due to the burden of computational expenses. Here we focused on the effect of high angle grain boundaries in microstructural evolution considering ĦExtended Read Shockley˘ grain boundary energy (D. Wolf, Scripta Metallurgica, 23, 1713, 1989). This new algorithm allows us to use an unlimited number of phase field variables. The simulation results suggest that the decrease in the growth rate for anisotropic grain boundary energy is more pronounced in the presence of high angle grain boundaries, which are described using an extension of the Read-Shockley, form for the grain boundary energy. |
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