Statistics of grain growth: Experiment versus the phase-field-crystal and Mullins models
نویسندگان
چکیده
منابع مشابه
Rotation-induced grain growth and stagnation in phase-field crystal models.
We consider grain growth and stagnation in polycrystalline microstructures. From the phase-field crystal modeling of the coarsening dynamics, we identify a transition from a grain-growth stagnation upon deep quenching below the melting temperature T(m) to a continuous coarsening at shallower quenching near T(m). The grain evolution is mediated by local grain rotations. In the deep quenching reg...
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0927-0256/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.commatsci.2009.03.037 * Corresponding author. Address: Dept. Metallurgy Katholieke Universiteit Leuven, Kasteelpark Arenbe Leuven, Belgium. E-mail address: [email protected] ( There exist different phase-field models for the simulation of grain growth in polycrystalline structures. In this paper, the model formulation, a...
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Phase-field-crystal (PFC) models constitute a field theoretical approach to solidification, melting, and related phenomena at atomic length and diffusive time scales. One of the advantages of these models is that they naturally contain elastic excitations associated with strain in crystalline bodies. However, instabilities that are diffusively driven towards equilibrium are often orders of magn...
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This course gives an elementary introduction to the phase-field method and to its applications for the modeling of crystal growth. Two different interpretations of the phase-field variable are given and discussed. It can be seen as a physical order parameter that characterizes a phase transition, or as a smoothed indicator function that tracks domain boundaries. Elementary phase-field models fo...
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ژورنال
عنوان ژورنال: Materialia
سال: 2019
ISSN: 2589-1529
DOI: 10.1016/j.mtla.2019.100280