Study on Flow Stress Model of a Microalloyed High Strength Steel in CSP Hot Rolling

Guang Xu; Lun Wan; Xin Qiang Zhang; Zheng Liang Xue

doi:10.4028/www.scientific.net/MSF.575-578.267

Paper Titles

Research on Behavior of Slab Surface Defects in Forward Slip Zone during V-H Rolling Process
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A Goal Oriented Numerical Simulation Approach for Computing Stress Intensity Factors in Bimaterials
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Finite Element Analysis of Stress and Strain in Two-Wedge Cross Wedge Rolling Step-Shaft Part
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Analysis of Hammering Deformation Processes by the Dynamic Explicit Finite Element Method
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Study on Flow Stress Model of a Microalloyed High Strength Steel in CSP Hot Rolling
p.267

Thermal-Mechanical Analysis of Metal Forming Based on Meshfree Method
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Finite Element Analysis of Slab Steel in the Process of Induction Heating
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Research on Fast Calculation of Rigid Plasticity Finite Element Method in Hot Strip Rolling
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The Finite Element Analysis of Serrated Chip Formation in High-Speed Cutting Auto Panel Dies
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HomeMaterials Science ForumMaterials Science Forum Vols. 575-578Study on Flow Stress Model of a Microalloyed High...

Study on Flow Stress Model of a Microalloyed High Strength Steel in CSP Hot Rolling

Abstract:

Hot simulation tests at different deformation technology parameters were carried out for a microalloyed high strength steel produced by CSP hot rolling and the stress-strain curves during deformation were measured. Based on the experimental results and the discussions of present flow stress models, a new flow stress model incorporating interactional effect of deformation temperature, strain and strain rate on flow stress was developed in the paper. Excellent agreement between measured and predicted flow stress values is obtained for new flow stress model of a microalloyed high strength steel rolled by CSP. In addition, the comparisons of flow stress prediction errors between several models and one given in the paper reveal that the prediction accuracy of new flow stress model presented in the paper is higher than other models.