Flow stress behavior of AZ61 magnesium alloy during hot compression deformation

2014 ◽  
Vol 53 ◽  
pp. 865-869 ◽  
Author(s):  
L.C. Tsao ◽  
Yen-Teng Huang ◽  
Kuo-Huan Fan
Keyword(s):  
Flow Stress ◽  
Magnesium Alloy ◽  
Hot Compression ◽  
Hot Compression Deformation ◽  
Az61 Magnesium Alloy ◽  
Stress Behavior ◽  
Compression Deformation ◽  
Flow Stress Behavior

Hot Compression Deformation Simulation of AZ61B Magnesium Alloy

2007 ◽  
Vol 546-549 ◽  
pp. 373-377 ◽  
Author(s):  
Pan Xiao ◽  
Tian Mo Liu ◽  
Jian Peng ◽  
Fu Sheng Pan ◽  
Qing Liu
Keyword(s):  
Flow Stress ◽  
Magnesium Alloy ◽  
Hot Compression ◽  
Strain Rates ◽  
Strain Rate Effects ◽  
Hot Compression Deformation ◽  
Compression Deformation ◽  
Rate Effects ◽  
Ebsd Technique ◽  
Stress And Deformation

The hot compression deformation behavior of AZ61B magnesium alloy has been investigated by using a Gleeble-1500D thermal simulator. The samples were compressed to a reduction of 50% at two temperatures (623 and 673K) with different strain rates (0.01, 0.1 and 1s-1). The relationships between flow stress and deformation temperature were analyzed, and the deformation activation energy and stress exponent were calculated based on the experimental results. With aid of the optical microscopy, scanning electron microscopy (SEM) and electron back scattered diffraction (EBSD) techniques, the microstructure and micro-texture of the deformed samples were characterized. The effects of the temperature and strain rates on the hot compression behavior of the AZ61B magnesium alloy have been investigated by detail analyses of the flow stress and microstructural characteristics of the deformed samples. For the 50% compressed samples, dynamic recrystallization occurred during the hot compression. The orientations of the dynamic recrystallized grains with equiaxed shape were investigated by EBSD technique. The relationships among the flow stress, dynamic recovery and recrystallization have been discussed by considering both the temperature and strain rate effects.

Compression Deformation Behavior of AZ91D Magnesium Alloy at Elevated Temperature

2012 ◽  
Vol 184-185 ◽  
pp. 914-919 ◽  
Author(s):  
Yue Sheng Chai ◽  
Yong Zhe Chen ◽  
Wen Feng Liu ◽  
Gang Sun
Keyword(s):  
Flow Stress ◽  
Magnesium Alloy ◽  
Strain Rate ◽  
Deformation Temperature ◽  
Hot Compression ◽  
Constant Flow ◽  
Compression Tests ◽  
Hot Compression Deformation ◽  
Az91d Magnesium Alloy ◽  
Compression Deformation

Hot compression tests of AZ91D magnesium alloy were performed on Gleeble1500 ranging from 0.001 to 1 s-1 and deformation temperature ranging from 200 to 400°C. The results show that flow stress is dependent on deformation temperature and strain rates．When strain rate is a constant, flow stress decreases with the increasing deformation temperature. Meanwhile, as deformation temperature is a constant, flow stress increases with the increase of strain rate, which can be demonstrated by a Zener-hollomon parameter in the hyperbolic-sine-type equation during hot compression deformation. The hot deformation activation energy is 176.01kJ/mol and the stress exponent is 7.85 during hot compression deformation of AZ91D magnesium alloy.

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
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