Rotation-induced grain growth and stagnation in phase-field crystal models

Mathias Bjerre; Jens Magelund Tarp; Luiza Angheluta; Joachim Mathiesen

doi:10.1103/PhysRevE.88.020401

Rotation-induced grain growth and stagnation in phase-field crystal models

Mathias Bjerre, Jens Magelund Tarp, Luiza Angheluta, Joachim Mathiesen

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17 Citations (Scopus)

Abstract

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 regime, the grain assembly typically reaches a metastable state where the kinetic barrier for recrystallization across boundaries is too large and grain rotation with subsequent coalescence or boundary motion is infeasible. For quenching near T_m, we find that the grain growth depends on the average rate of grain rotation, and follows a power-law behavior with time, with a scaling exponent that depends on the quenching depth.

Original language	English
Article number	020401
Journal	Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)
Volume	88
Issue number	2
Number of pages	4
ISSN	1539-3755
DOIs	https://doi.org/10.1103/PhysRevE.88.020401
Publication status	Published - 15 Aug 2013

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title = "Rotation-induced grain growth and stagnation in phase-field crystal models",

abstract = "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 Tm to a continuous coarsening at shallower quenching near Tm. The grain evolution is mediated by local grain rotations. In the deep quenching regime, the grain assembly typically reaches a metastable state where the kinetic barrier for recrystallization across boundaries is too large and grain rotation with subsequent coalescence or boundary motion is infeasible. For quenching near Tm, we find that the grain growth depends on the average rate of grain rotation, and follows a power-law behavior with time, with a scaling exponent that depends on the quenching depth.",

author = "Mathias Bjerre and Tarp, {Jens Magelund} and Luiza Angheluta and Joachim Mathiesen",

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T1 - Rotation-induced grain growth and stagnation in phase-field crystal models

AU - Bjerre, Mathias

AU - Tarp, Jens Magelund

AU - Angheluta, Luiza

AU - Mathiesen, Joachim

PY - 2013/8/15

Y1 - 2013/8/15

N2 - 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 Tm to a continuous coarsening at shallower quenching near Tm. The grain evolution is mediated by local grain rotations. In the deep quenching regime, the grain assembly typically reaches a metastable state where the kinetic barrier for recrystallization across boundaries is too large and grain rotation with subsequent coalescence or boundary motion is infeasible. For quenching near Tm, we find that the grain growth depends on the average rate of grain rotation, and follows a power-law behavior with time, with a scaling exponent that depends on the quenching depth.

AB - 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 Tm to a continuous coarsening at shallower quenching near Tm. The grain evolution is mediated by local grain rotations. In the deep quenching regime, the grain assembly typically reaches a metastable state where the kinetic barrier for recrystallization across boundaries is too large and grain rotation with subsequent coalescence or boundary motion is infeasible. For quenching near Tm, we find that the grain growth depends on the average rate of grain rotation, and follows a power-law behavior with time, with a scaling exponent that depends on the quenching depth.

U2 - 10.1103/PhysRevE.88.020401

DO - 10.1103/PhysRevE.88.020401

M3 - Journal article

SN - 2470-0045

VL - 88

JO - Physical Review E

JF - Physical Review E

IS - 2

M1 - 020401

ER -

Rotation-induced grain growth and stagnation in phase-field crystal models

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