Journal
ACTA MATERIALIA
Volume 65, Issue -, Pages 161-175Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2013.10.057
Keywords
Grain boundary energy; Crystal structure; Misorientation; Modeling; Lattice geometry
Funding
- US Department of Energy by Lawrence Livermore National Laboratory [W-7405-Eng-48]
- US DOE Office of Basic Energy Sciences, Division of Materials Sciences and Engineering
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Anisotropy of interfacial energy is the principal driving force for thermally driven microstructure evolution, yet its origins remain uncertain and a quantitative description lacking. We present and justify a concise hypothesis on the topography of the functional space of interface energies and, based on this hypothesis, construct a closed-form function that quantitatively describes energy variations in the 5-space of macroscopic parameters defining grain boundary geometry. The new function is found to be universal for the crystallography class of face-centered cubic (fcc) metals. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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