Modeling Flow Stress and Microstructural Development during Hot Working

Zhao Yang Jin; Zhen Shan Cui

doi:10.4028/www.scientific.net/AMM.217-219.1506

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Modeling Flow Stress and Microstructural...

Modeling Flow Stress and Microstructural Development during Hot Working

Abstract:

A cellular automaton (CA) model was established to predict and control the microstructural evolution and flow stress characteristic during dynamic recrystallization (DRX). Values of model parameters were identified by a flow stress-based inverse analysis method; their variations with deformation conditions were estimated by the least square regression method and then integrated into the CA model. The effect of initial microstructure and deformation conditions on the microstructural evolution and flow stress behavior were investigated. The simulation agrees well with the experiment, which demonstrates the availability of the CA model.

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Applied Mechanics and Materials (Volumes 217-219)

Pages:

1506-1510

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.217-219.1506

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Online since:

November 2012

Authors:

Zhao Yang Jin, Zhen Shan Cui

Keywords:

Cellular Automaton (CA), Deformation Conditions, Dynamic Recrystallization (DRX), Initial Microstructure, Inverse Analysis Method, Least Square Regression Method

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