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Multiphase microstructure evolution model including dislocation plasticity

Published online by Cambridge University Press:  31 January 2011

Fabrizio Cleri  and
Gregorio D'Agostino
Fabrizio Cleri
Affiliation:
Ente Nuove Tecnologie, Energia e Ambiente, Divisione Materiali, Centro Ricerche Casaccia, CP 2400, I-00100 Roma, Italy
Gregorio D'Agostino
Affiliation:
Ente Nuove Tecnologie, Energia e Ambiente, Divisione Materiali, Centro Ricerche Casaccia, CP 2400, I-00100 Roma, Italy
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Abstract

We present the recent extensions of our stochastic microstructure evolution model including multiphase domain evolution and dislocation plasticity. The model was implemented by means of numerical simulations based on the velocity Monte Carlo algorithm. It describes the evolution of a two-dimensional microstructure by tracking the motion of triple junctions, i.e., the vertices where three grain boundaries (GBs) meet. GBs can be modeled as straight, curved, or discretized segments; the misorientation dependence of both grain-boundary energies and mobilities can be included to represent different textures.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 8 , August 2002 , pp. 1932 - 1940
Copyright
Copyright © Materials Research Society 2002

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