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Level set framework for the finite-element modelling of recrystallization and grain growth in polycrystalline materials

机译:用于多晶材料中再结晶和晶粒生长的有限元建模的水平集框架

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摘要

The paper describes a level set framework for the finite-element modelling of recrystallization in polycrystalline materials, including the nucleation, primary recrystallization and grain growth stages. A set of convection-reinitialization-diffusion equations is implemented within a finite-element formulation to describe boundary motion, according to a kinetic law relating the velocity of the boundary to a thermodynamic driving force. Different theoretical test cases illustrate the potential of the method for simulations of recrystallization and grain growth following large plastic deformation and/or considering complex microstructures.
机译:本文描述了一种用于多晶材料中再结晶的有限元建模的水平集框架,包括成核,初次再结晶和晶粒长大阶段。根据将边界速度与热力学驱动力相关的动力学定律,在有限元公式中实现了一组对流-重新初始化-扩散方程,以描述边界运动。不同的理论测试案例说明了该方法在模拟大塑性变形和/或考虑复杂的微观结构后进行再结晶和晶粒长大的潜力。

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