Phase field simulation of the effect of anisotropy in grain boundary energy on growth kinetics and morphology of grain structure

Yoshihiro Suwa*, Yoshiyuki Saito

*この研究の対応する著者

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Effect of anisotropy in grain boundary energy on kinetics of grain growth and topological properties of grain structure in two dimensions was simulated by the phase field model. Misorientation distribution in a system with anisotropic grain boundary energy is found to be time-dependent. Fraction of low angle grains boundaries increases with time and high angle grains disappear fast. The average area is found to be proportional to time in both isotropic and anisotropic cases. The anisotropy in grain boundary energy delays the growth rate. The scaled grain size and the edge number distributions become time-independent in both isotropic and anisotropic cases. Anisotropy in grain boundary energy broadens the scaled grain size and the edge number distributions. The characteristics of the size distribution can be represented by the variation in a parameter, called microstructural entropy. The nearest neighbor face correlations obtained by the simulated grain structures with isotropic and anisotropic grain boundary energies are quite similar to the Aboav-Weaire relation.

本文言語English
ページ(範囲)1208-1213
ページ数6
ジャーナルMaterials Transactions
46
6
DOI
出版ステータスPublished - 2005 6

ASJC Scopus subject areas

  • 材料科学(全般)
  • 金属および合金

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