Monte Carlo simulation of deformation substructure evolution during recrystallization

Journal Article · Fri Nov 13 04:00:00 EST 1998 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(98)00376-5· OSTI ID:305420

Radhakrishnan, B; Sarma, G; Zacharia, T ^[1]

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1. Oak Ridge National Lab., TN (United States)

Recently, a microstructure and texture evolution model was presented for static recrystallization by coupling a Monte Carlo (MC) simulation of recrystallization with a finite element (FE) simulation of microstructural deformation based on crystal plasticity. The crystal plasticity model provided a quantitative description of the orientation distributions in the deformed microstructure. In this paper, a new model for recrystallization is presented where recrystallization is modeled as a one-step, heterogeneous subgrain growth process. The simulations indicate how existing prior high angle boundaries as well as the high angle boundaries produced by the deformation process migrate to sweep through the deformed regions to produce typical recrystallized microstructures and kinetics. The simulations also capture the heterogeneous growth of subgrains induced by long-range orientation gradients present in the deformation substructure. The simulations are used to evaluate the recrystallization kinetics, microstructure and texture evolution for deformed fcc polycrystals.

• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 305420
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 12 Vol. 39; ISSN 1359-6462; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DEFORMATION
FCC LATTICES
FINITE ELEMENT METHOD
KINETICS
MATHEMATICAL MODELS
MONTE CARLO METHOD
POLYCRYSTALS
RECRYSTALLIZATION
TEXTURE