Flow stress modeling of AZ91 magnesium alloys at elevated temperature

2011 ◽  
Vol 509 (15) ◽  
pp. 4992-4998 ◽  
Author(s):  
B.K. Raghunath ◽  
K. Raghukandan ◽  
R. Karthikeyan ◽  
K. Palanikumar ◽  
U.T.S. Pillai ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Flow Stress ◽  
Magnesium Alloys ◽  
Stress Modeling ◽  
Az91 Magnesium

Temperature Dependent Plastic Deformation Behavior of AZ31 Magnesium Alloy in Uniaxial and Biaxial Compressions

2016 ◽  
Vol 725 ◽  
pp. 421-426 ◽  
Author(s):  
Ichiro Shimizu
Keyword(s):  
Elevated Temperature ◽  
Flow Stress ◽  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Deformation Behavior ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Temperature Dependency ◽  
Stress Strain ◽  
Stress Strain Relation

Metal forming of magnesium alloys often performed at elevated temperature, because magnesium alloys exhibit peculiar stress-strain relation and inferior ductility compared to conventional metals at room temperature. In the present study, deformation behavior and formability of cast and extruded AZ31 magnesium alloys under uniaxial and biaxial compressions at room temperature and at elevated temperatures were investigated. The results revealed that the compressive stress-strain relation of AZ31 magnesium alloy changed not only with the initial texture but also with the deformation temperature. The temperature dependency of flow stress of the cast alloy was smaller than that of the extruded alloy probably because of less influence of pre-deformation. In addition, the influence of compressive deformation pattern upon flow stress of the extruded alloy remained even at elevated temperature to 523 K. The temperature dependency of compressive fracture was also discussed and it was found that the equi-biaxial condition improved the compressive formability at elevated temperatures.

Fatigue behavior of calcium containing AZ91 magnesium alloys

2015 ◽  
Vol 57 (2) ◽  
pp. 126-130
Author(s):  
Dorothea Amberger ◽  
Tina Blickle ◽  
Heinz Werner Höppel ◽  
Mathias Göken
Keyword(s):  
Magnesium Alloys ◽  
Fatigue Behavior ◽  
Az91 Magnesium

Prediction of flow stress and textures of AZ31 magnesium alloy at elevated temperature

2014 ◽  
Vol 94 (29) ◽  
pp. 3353-3367 ◽  
Author(s):  
Hesam Askari ◽  
John P. Young ◽  
David P. Field ◽  
Ghassan Kridli ◽  
Hussein M. Zbib
Keyword(s):  
Elevated Temperature ◽  
Flow Stress ◽  
Magnesium Alloy ◽  
Az31 Magnesium Alloy

Influence of 8-hydroxyquinoline on properties of anodic coatings obtained by micro arc oxidation on AZ91 magnesium alloys

2012 ◽  
Vol 539 ◽  
pp. 249-255 ◽  
Author(s):  
R.F. Zhang ◽  
S.F. Zhang ◽  
N. Yang ◽  
L.J. Yao ◽  
F.X. He ◽  
...  
Keyword(s):  
Magnesium Alloys ◽  
Micro Arc Oxidation ◽  
Az91 Magnesium
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