The microstructure, tensile, and shear deformation behavior of an AZ31 magnesium alloy after extrusion and equal channel angular pressing

The microstructure and material properties of AZ31 magnesium alloy are very sensitive to process parameters, which directly determine the service properties. To explore and understand the deformation behavior and the optimization of the deformation process, the microstructure evolution during equal channel angular pressing was predicted by using the DEFORM-3D software package at different temperature. To verify the finite element simulation results, the microstructure across the transverse direction of the billet was measured. The results show that the effects strain and deformation temperatures on the microstructure evolution of AZ31 magnesium during ECAP process are significant, and a good agreement between the predicted and experimental results was obtained, which confirmed that the derived dynamic recrystallization mathematical models can be successfully incorporated into the finite element model to predict the microstructure evolution of ECAP process for AZ31 magnesium.

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Influence of second-phase particles on grain growth in AZ31 magnesium alloy during equal channel angular pressing by phase field simulation

Modelling and Simulation in Materials Science and Engineering ◽

10.1088/0965-0393/24/5/055017 ◽

2016 ◽

Vol 24 (5) ◽

pp. 055017 ◽

Cited By ~ 1

Author(s):

Ri He ◽

Mingtao Wang ◽

Xiangang Zhang ◽

Bernie Yaping Zong

Keyword(s):

Magnesium Alloy ◽

Grain Growth ◽

Equal Channel Angular Pressing ◽

Phase Field ◽

Az31 Magnesium Alloy ◽

Second Phase ◽

Phase Field Simulation ◽

Angular Pressing ◽

Field Simulation ◽

Second Phase Particles

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Deformation Behavior of Cu-8wt%Ag Alloy during Equal Channel Angular Pressing

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1101.93 ◽

2015 ◽

Vol 1101 ◽

pp. 93-98

Author(s):

Yue Shen ◽

Chuan Ting Ren ◽

Guo Quan Zhang ◽

Ming Xie ◽

Ming Wen ◽

...

Keyword(s):

Shear Deformation ◽

Equal Channel Angular Pressing ◽

Deformation Behavior ◽

Shear Bands ◽

Vertical Plane ◽

Vertical Shear ◽

Ecap Processing ◽

Angular Pressing ◽

Micro Level ◽

The One

The shear deformation behavior of the course-grained Cu-8wt%Ag alloy processed by one pass of equal channel angular pressing (ECAP) was revealed through the metallurgical microscope and the scanning electron microscope. Through the macro-level and micro-level synthesis analysis, it is confirmed that there are two shear deformation during the ECAP processing: the one along the intersection plane (IP) and the other along the vertical plane to the IP. And it is estimated that theoretical ranges of two shear angles are-32°<θ1<0° and 43°<θ2<58° respectively. Finally, it is also proved that the evolution of the shear bands is affected by the parallel and vertical shear to the IP of the ECAP die, and that, besides the shear along the IP, the shear along the vertical plane to the IP also plays an important role during the plastic deformation.

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