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Modeling of Subgrain Growth Kinetics: 3D Monte-Carlo Simulation

Published online by Cambridge University Press:  31 January 2011

Tomoaki Suzudo ,
Hideo Kaburaki  and
Mitsuhiro Itakura
Tomoaki Suzudo
Affiliation:
suzudo.tomoaki@jaea.go.jp, Japan Atomic Energy Agency, Center for Computational Science & e-Systems, Tokai-mura, Japan
Hideo Kaburaki
Affiliation:
kaburaki.hideo@jaea.go.jp, Japan Atomic Energy Agency, Center for Computational Science & e-Systems, Tokai-mura, Japan
Mitsuhiro Itakura
Affiliation:
itakura.mitsuhiro@jaea.go.jp, Japan Atomic Energy Agency, Center for Computational Science & e-Systems, Taito-ku, Japan
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Abstract

We used a three-dimensional Monte Carlo method to investigate subgrain growth with different initial values for average grain-boundary misorientation, and found that abnormal grain growth emerges for relatively large average misorientation, with remaining cases revealing an exponential kinetics of subgrain growth. We also found that the growth exponent was ˜4.4, and that it was virtually independent of the average misorientation. Self-similarity of the misorientation distribution was observed during growth.

Keywords

simulationgrain sizegrain boundaries
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1225: Symposium HH – Multiscale Polycrystal Mechanics of Complex Microstructures , 2009 , 1225-HH02-04
Copyright
Copyright © Materials Research Society 2010

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