Phase-field modeling of stored-energy-driven grain growth with intra-granular variation in dislocation density
Guanglong Huang,
Alexander Mensah,
Marcel Chlupsa
et al.
Abstract:We present a phase-field model to simulate the microstructure evolution occurring in polycrystalline materials with a variation in the intra-granular dislocation density. The model accounts for two mechanisms that lead to the grain boundary migration: the driving force due to capillarity and that due to the stored energy arising from a spatially varying dislocation density. In addition to the order parameters that distinguish regions occupied by different grains, we introduce dislocation density fields that de… Show more
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