The grain refining effect of energy competition and the amorphous phase in nanocomposite materials

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)662-665
Journal / PublicationScripta Materialia
Volume69
Issue number9
Publication statusPublished - Nov 2013

Abstract

The effect of refining a two-phase nanocrystalline-amorphous (NC-a) nanocomposite microstructure was examined by performing Monte Carlo simulations. The results showed that the ratio of NC-NC grain boundary energy (J gb) and NC-a interfacial energy (Jint) determines the two-phase microstructure and controls its stability. The optimal stable microstructure was found with Jgb/Jint = 10 and amorphous fraction f = 0.15, where almost all the grains are surrounded by the thinner amorphous phase and the grain size distribution obeys the log-normal form very well. © 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Research Area(s)

  • Amorphous phase, Carlo simulation, Grain growth, Microstructure, Monte, Nanocomposite materials