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Article Dans Une Revue RECRYSTALLIZATION AND GRAIN GROWTH IV Année : 2012

Modelling Discontinuous Dynamic Recrystallization using a Physically-Based Model for Nucleation.

Résumé

A physically-based model for nucleation during discontinuous dynamic recrystallization (DDRX) has been developed and is coupled with polyphase plasticity and grain growth models to predict the macroscopic stress and grain size evolution during straining. The nucleation model is based on a recent description for static recrystallization and considers the dynamically evolving substructure size. Model predictions are compared with literature results on DDRX in pure Cu as a function of initial grain size, deformation temperature and strain-rate. The characteristic DRX features such as single to multiple peak stress transitions and convergence towards a steady-state stress and grain size are quantitatively reproduced by the model.

Domaines

Matériaux
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Dates et versions

hal-00805034 , version 1 (26-03-2013)

Identifiants

  • HAL Id : hal-00805034 , version 1

Citer

D.G. Cram, H.S. Zurob, Y. Brechet, C.R. Hutchinson. Modelling Discontinuous Dynamic Recrystallization using a Physically-Based Model for Nucleation.. RECRYSTALLIZATION AND GRAIN GROWTH IV, 2012, 715716, pp.492-497. ⟨hal-00805034⟩
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