Orientation-field models for polycrystalline solidification: Grain coarsening and complex growth forms

Bálint Korbuly, T. Pusztai, G. Tóth, Hervé Henry, Mathis Plapp, László Gránásy

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We compare two versions of the phase-field theory for polycrystalline solidification, both relying on the concept of orientation fields: one by Kobayashi et al. [Physica D 140 (2000) 141] [15] and the other by Henry et al. [Phys. Rev. B 86 (2012) 054117] [22]. Setting the model parameters so that the grain boundary energies and the time scale of grain growth are comparable in the two models, we first study the grain coarsening process including the limiting grain size distribution, and compare the results to those from experiments on thin films, to the models of Hillert, and Mullins, and to predictions by multiphase-field theories. Next, following earlier work by Gránásy et al. [Phys. Rev. Lett. 88 (2002) 206105; Phys. Rev. E 72 (2005) 011605] [17,21], we extend the orientation field to the liquid state, where the orientation field is made to fluctuate in time and space, and employ the model for describing of multi-dendritic solidification, and polycrystalline growth, including the formation of "dizzy" dendrites disordered via the interaction with foreign particles.

Original languageEnglish
JournalJournal of Crystal Growth
DOIs
Publication statusAccepted/In press - 2016

Fingerprint

Coarsening
solidification
Solidification
dendrites
Grain growth
Grain boundaries
grain boundaries
grain size
Thin films
Liquids
liquids
thin films
predictions
Experiments
interactions
energy

Keywords

  • A1 Polycrystalline solidification
  • Computational materials science
  • Growth front nucleation
  • Multiphase-field models
  • Orientation field models
  • Polycrystalline growth

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Chemistry
  • Inorganic Chemistry

Cite this

Orientation-field models for polycrystalline solidification : Grain coarsening and complex growth forms. / Korbuly, Bálint; Pusztai, T.; Tóth, G.; Henry, Hervé; Plapp, Mathis; Gránásy, László.

In: Journal of Crystal Growth, 2016.

Research output: Contribution to journalArticle

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AU - Korbuly, Bálint

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AU - Henry, Hervé

AU - Plapp, Mathis

AU - Gránásy, László

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