Numerical Simulation of Homogeneous Polycrystalline Grain Formation Using Multi-Phase-Field Model

Takuya Uehara; Hideyuki Suzuki

doi:10.4028/www.scientific.net/AMM.197.628

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 197Numerical Simulation of Homogeneous...

Numerical Simulation of Homogeneous Polycrystalline Grain Formation Using Multi-Phase-Field Model

Abstract:

A modified multi-phase-field model for regenerating a homogeneous polycrystalline microstructure was presented. An extra term was introduced to the original formula by Steinbach et al. by assuming that the stability of every grain constituting the microstructure depends on the grain size distribution. The effect of the term on the obtained microstructure was then verified by numerical simulations, and it was found that a homogeneous microstructure having nearly the same shape and size was generated. The influence of the parameter was also investigated, and it revealed that the parameter was dominative on the grain size at the steady state.

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Periodical:

Applied Mechanics and Materials (Volume 197)

Pages:

628-632

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.197.628

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Online since:

September 2012

Authors:

Takuya Uehara, Hideyuki Suzuki

Keywords:

Computer Simulation, Grain Boundary Mobility, Microstructure, Phase Field Model, Polycrystalline Structure

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