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Metallic Materials Vol. 50 (2012), no. 1, pp.43-49 |
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Title: Simulation and finite element analysis of continuous multi-pass hot rolled AZ31B magnesium alloy sheets | ||
Author: K. YU, Z. Y. CAI, X. TAN, F. W. CHEN, Y. N. HU, S. J. LI | ||
Abstract: The deformation behavior of the continuous multi-pass hot rolling AZ31B sheets is tested in a Gleeble 1500 thermo-mechanical simulator. The evolution of microstructure during the deformation process is observed and the constitutive relation of AZ31B alloy is analyzed by a finite element method. The results show that the deformation behavior of continuous multi-pass hot rolling of AZ31B sheets is totally different with that of single pass rolling. The work hardening mechanism plays a more important role than the dynamic recrystallization does during the continuous multi-pass deformation process under different strain rates from 0.01 s-1 to 5 s-1. The calculated value of high temperature deformation activation energy of hot rolling AZ31B sheets is 171 kJ/mol. The FEM simulation provides a detailed distribution of temperatures, stress and equivalent strains in the continuous multi-pass rolling sheet. |
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Keywords: magnesium alloys, finite element analysis, rolling, thermo-mechanical processing | ||
Year: 2012, Volume: 50, Issue: 1 | Page From: 43, Page To: 49 | |
doi:10.4149/km_2012_1_43 |
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