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The Elimination of Grains and Grain Boundaries in Grain Growth

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Interface Science

Abstract

The topological changes that occur during coarsening of 2D and 3Dcellular structures, such as polycrystals, areinvestigated. Particular attention is given to the elimination ofgrain boundaries and grains with more than the minimum number oftopological elements. A thermodynamic criterion is introduced tofind out which topological transformations are favoured, based on theevaluation of the Gibbs free energy of the initial and finalconfigurations. In general, elimination of grains is possible only ifthe number of their neighbours is below a critical value, which maybe affected by geometry.

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Authors and Affiliations

  1. Departamento de Engenharia de Materiais, Instituto Superior Técnico, Av. Rovisco Pais 1, 1096, Lisboa Codex, Portugal

    A.C. Ferro & M.A. Fortes

Authors
  1. A.C. Ferro
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  2. M.A. Fortes
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Ferro, A., Fortes, M. The Elimination of Grains and Grain Boundaries in Grain Growth. Interface Science 5, 263–278 (1997). https://doi.org/10.1023/A:1008615921333

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  • DOI: https://doi.org/10.1023/A:1008615921333

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