Effect of Deformation Homogeneity on Grain Refinement of AZ31 Magnesium Alloys Based on FEA during ECAP

Yi Wen Xia; Bi You Peng; Chao Zhou; Ren Yuan Pan; Shi Xiong Chen

doi:10.4028/www.scientific.net/MSF.850.281

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HomeMaterials Science ForumMaterials Science Forum Vol. 850Effect of Deformation Homogeneity on Grain...

Effect of Deformation Homogeneity on Grain Refinement of AZ31 Magnesium Alloys Based on FEA during ECAP

Abstract:

In this study, the deformation process of AZ31 magnesium alloy during equal channel angular pressing (ECAP) was simulated using the commercial software Deform-3D under different extrusion condition (passes and temperatures). To investigate the effect of temperature and deformation rate on grain refinement, the rules of flow and deformation homogeneity and also the extrusion load during ECAP was discussed. The simulation results indicate that the AZ31 magnesium alloy obtain homogenous and larger strain magnitude after 4 passes ECAP at 250°C~275°C. To verify the 3D finite element simulation results, the microstructure in the cross-section was observed. It shows that the grain of AZ31 magnesium alloy is homogenous refined by finite element method (FEM) results, thus the mechanical property is improved.

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Periodical:

Materials Science Forum (Volume 850)

Pages:

281-286

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.850.281

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Online since:

March 2016

Authors:

Yi Wen Xia, Bi You Peng*, Chao Zhou, Ren Yuan Pan, Shi Xiong Chen

Keywords:

AZ31 Magnesium Alloy, Equal Channel Angular Pressing (ECAP), Finite Element Simulation, Grain Refinement, Homogeneity of Deformation

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