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Topological transformation of grains in three-dimensional normal grain growth

Published online by Cambridge University Press:  31 January 2011

F. Wakai ,
Y. Shinoda ,
S. Ishihara  and
A. Domínguez-Rodríguez
F. Wakai*
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226–8503, Japan
Y. Shinoda
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226–8503, Japan
S. Ishihara
Affiliation:
Ceramic Superplasticity Project, ICORP, Japan Science and Technology Corporation 2–4-1 Mutsuno, Atsuta, Nagoya 456–8587, Japan
A. Domínguez-Rodríguez
Affiliation:
Departmento de Fisíca de la Materia Condensada, Universidad de Sevilla, Aptdo. 1065, 41080 Sevilla, Spain
*
a)Address all correspondence to this author. e-mail: wakai@rlem.titech.ac.jp
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Abstract

The topological transformation of grains in three-dimensional normal grain growth was analyzed by Brakke's Surface Evolver method that simulated the boundary motion by curvature. The statistics on elemental processes, which change the number of faces f of a grain, were determined from the simulation. The distribution function of the number of faces P( f ) in a steady structure could be predicted from the difference in the current of grains arriving at and leaving from state f. For the disappearance of one grain, face-creation switching occurred 3.7 times and face-elimination switching occurred 13.2 times on the average.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 7 , July 2001 , pp. 2136 - 2142
Copyright
Copyright © Materials Research Society 2001

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