A nonlinear capillarity-driven grain growth in polycrystalline materials

11 Dec 2017  ·  Hu Jianfeng, Wang Xianhao ·

A formula of grain growth rate, based on a nonlinear capillarity-driven relation, is derived to predict and interpret realistic growth processes in polycrystalline systems. The derived formula reveals how the growth and stagnation of grains dominated by the correlated parameters (temperature, interfacial energy, step free energy, grain size and size distribution in polycrystalline system etc.)... Our study provide a conclusive model of the growth and stagnation of grains, and thus offers helpful guides for the microstructural design to optimize the properties of polycrystalline materials. read more

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Materials Science