scholarly journals Mechanisms of Plastic Deformation in AZ31 Magnesium Alloy Investigated by Acoustic Emission and Electron Microscopy

10.5772/13737 ◽  
2011 ◽  
Author(s):  
Milos Janecek ◽  
Frantiek Chmelk
Keyword(s):  
Electron Microscopy ◽  
Plastic Deformation ◽  
Acoustic Emission ◽  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
Mechanisms Of Plastic Deformation

scholarly journals Acoustic emission generated during the tensile testing of AZ31 magnesium alloy.

1990 ◽  
Vol 40 (7) ◽  
pp. 514-519
Author(s):  
Hajime KATO ◽  
Tatsumi TOZAWA ◽  
Yoshimasa TAKAYAMA
Keyword(s):  
Acoustic Emission ◽  
Magnesium Alloy ◽  
Tensile Testing ◽  
Az31 Magnesium Alloy

Influence of number of ECAP passes on microstructure and mechanical properties of AZ31 magnesium alloy

2012 ◽  
Vol 57 (3) ◽  
pp. 711-717 ◽  
Author(s):  
K. Bryła ◽  
J. Dutkiewicz ◽  
L. Litynska-Dobrzynska ◽  
L.L. Rokhlin ◽  
P. Kurtyka
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Grain Refinement ◽  
Vickers Microhardness ◽  
Az31 Alloy ◽  
Az31 Magnesium Alloy ◽  
Angular Pressing ◽  
Microstructure And Mechanical Properties ◽  
Transmission Electron

The aim of this work was to investigate the influence of the number of equal channel angular pressing (ECAP) passes on the microstructure and mechanical properties of AZ31 magnesium alloy. The microstructure after two and four passes of ECAP at 423 and 523 K was investigated by means of optical and transmission electron microscopy. The mechanical properties were carried out using Vickers microhardness measurements and compression test. The grain refinement in AZ31 alloy was obtained using ECAP routes down to 1,5 μm at 423 K. Processes of dynamic recrystallization during ECAP were observed. It was found that a gradual decrease of grain size occurs with the increasing of number of ECAP passes. The grain refinement increases mechanical properties at ambient temperature, such as Vickers microhardness and compression strength proportionally to d-0.5.

Thin-Walled Tube Made of AZ31 Magnesium Alloy Fabricated by New Compound Extrusion Including Direct Extrusion and Multi-pass Bending

2021 ◽  
Author(s):  
LI Xing lin ◽  
Hongjun Hu ◽  
Zhang Huiling ◽  
Zhao Hui ◽  
ZHANG Dingfei ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Magnesium Alloy ◽  
Fem Simulation ◽  
Az31 Magnesium Alloy ◽  
Process Conditions ◽  
Direct Extrusion ◽  
Tube Extrusion ◽  
Fem Method ◽  
Thin Walled Tube ◽  
Thin Walled

Abstract A new severe plastic deformation for manufacturing thin-walled tube made of AZ31 magnesium alloy called TEB(Tube-Extrusion-Bending ) process, which combines direct extrusion with two step bending,has been developed to manufacture tube.The TEB process has been researched by using finite element modeling (FEM) method. The rules of extrusion temperatures and the extrusion forces varying with process parameters have been developed. A TEB process with installed containers and dies has been constructed to perform tests in order to validate the FEM model with different process conditions. And the microstructures evolution have been researched based on effective strains evolution. The results showed that refined and uniform microstructures can be achieved by TEB process. The research results showed that the TEB process would produce the serve plastic deformation and improve the recrystallization of the grains.The comparisons of FEM simulation and experimental results have been made to obtain the relative important principles of TEB process.

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