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

Biokompleksitet

17 Citationer (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.

Originalsprog	Engelsk
Artikelnummer	020401
Tidsskrift	Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)
Vol/bind	88
Udgave nummer	2
Antal sider	4
ISSN	1539-3755
DOI	https://doi.org/10.1103/PhysRevE.88.020401
Status	Udgivet - 15 aug. 2013

Adgang til dokumentet

10.1103/PhysRevE.88.020401

Citationsformater

@article{fcea3db971ce406a9f2c924c4b5f4199,

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",

year = "2013",

month = aug,

day = "15",

doi = "10.1103/PhysRevE.88.020401",

language = "English",

volume = "88",

journal = "Physical Review E",

issn = "2470-0045",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

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

Abstract

Adgang til dokumentet

Fingeraftryk

Citationsformater