scholarly journals Size effects on flow stress behavior during electrically-assisted micro-tension in a magnesium alloy AZ31

2016 ◽  
Vol 659 ◽  
pp. 215-224 ◽  
Author(s):  
Xinwei Wang ◽  
Jie Xu ◽  
Zilin Jiang ◽  
Wu-Le Zhu ◽  
Debin Shan ◽  
...  
Keyword(s):  
Flow Stress ◽  
Magnesium Alloy ◽  
Size Effects ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Electrically Assisted ◽  
Stress Behavior ◽  
Flow Stress Behavior

Texture dependencies on flow stress behavior of magnesium alloy under dynamic compressive loading

Vacuum ◽  
2021 ◽  
pp. 110323
Author(s):  
Faisal Nazeer ◽  
Syed Zohaib Hassan Naqvi ◽  
Abul Kalam ◽  
A.G. Al-Sehemi ◽  
Hussein Alrobi
Keyword(s):  
Flow Stress ◽  
Magnesium Alloy ◽  
Compressive Loading ◽  
Stress Behavior ◽  
Flow Stress Behavior ◽  
Dynamic Compressive Loading

Complex Flow Stress Model for a Magnesium Alloy AZ31 at Hot Forming

2011 ◽  
Vol 30 (1-2) ◽  
Author(s):  
Miroslav Legerski ◽  
Jiří Plura ◽  
Ivo Schindler ◽  
Stanislav Rusz ◽  
Petr Kawulok ◽  
...  
Keyword(s):  
Flow Stress ◽  
Magnesium Alloy ◽  
Hot Forming ◽  
Stress Model ◽  
Complex Flow ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Flow Stress Model

The Influence of Twinning on the Hot Working Flow Stress and Microstructural Evolution of Magnesium Alloy AZ31

2005 ◽  
Vol 488-489 ◽  
pp. 611-614 ◽  
Author(s):  
Aiden G. Beer ◽  
Matthew R. Barnett
Keyword(s):  
Flow Stress ◽  
Magnesium Alloy ◽  
Microstructural Evolution ◽  
Hot Deformation ◽  
Room Temperature ◽  
Peak Flow ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Deformation Step ◽  
Cast Condition

The microstructural evolution during compression (at 350°C and a strain rate of 0.01s-1) was examined for magnesium alloy AZ31 received in the "as-cast" condition. It was revealed that at low strains, many twins are produced and dynamically recrystallized (DRX) grains form as a necklace along pre-existing grain boundaries. At higher strains, DRX stagnates, most likely due to the accommodation of deformation in the DRX fraction of the material. It was also observed that twin boundaries act as sites for the nucleation of DRX grains. The analysis was repeated for samples pre-compressed to a strain of 0.15 at room temperature prior to the hot deformation step. The idea of these additional tests was to increase the degree of twinning and therefore the density of sites for the nucleation of DRX. It was found that statically recrystallized (SRX) grains developed at the twins during heating to the test temperature. When these samples were deformed, the peak flow stress was reduced by approximately 20% and the development of DRX was enhanced. This can be attributed to the accelerated nucleation of DRX in the refined SRX structure.

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