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Upmanyu, M.
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Publications (5/5 displayed)
- 2016Non-equilibrium induction of tin in germanium: towards direct bandgap Ge1−xSnx nanowires
- 2007Simulations of boundary migration during recrystallization using molecular dynamicscitations
- 2007Simulations of boundary migration during recrystallization using molecular dynamicscitations
- 2006Simultaneous grain boundary migration and grain rotationcitations
- 2002Boundary mobility and energy anisotropy effects on microstructural evolution during grain growthcitations
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article
Simulations of boundary migration during recrystallization using molecular dynamics
Abstract
We have applied an atomistic simulation methodology based on molecular dynamics to study grain boundary migration in crystalline materials, driven by the excess energy of dislocation arrangements. This method is used to simulate recrystallization in metals. The simulations reveal that the migration process is not uniform as assumed in many recrystallization models, but that the grain boundaries migrate in an irregular fashion and exhibit a strong dependence on the local presence of dislocations, which can distort the local migration process significantly. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.