The Influence of High Temperature Ultrasonic Processing Time on the Microstructure and Mechanical Properties AZ91E Magnesium Alloy

2021 ◽  
Author(s):  
P. Emadi ◽  
C. Ravindran
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Magnesium Alloy ◽  
Processing Time ◽  
Ultrasonic Processing ◽  
Microstructure And Mechanical Properties

Microstructure and Mechanical Properties of AZ81 Magnesium Alloy after Unequal Channel Angular Pressing

2013 ◽  
Vol 749 ◽  
pp. 343-348
Author(s):  
Xiao Ping Luo ◽  
Ming Gang Zhang ◽  
Jun Qi Zhou
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Plastic Deformation ◽  
Tensile Strength ◽  
High Temperature ◽  
Magnesium Alloy ◽  
Pressing Temperature ◽  
Angular Pressing ◽  
Microstructure And Mechanical Properties ◽  
Tensile Fractures

The microstructure and mechanical properties of AZ81magnesium alloys after unequal channel angular pressing (UCAP) was investigated using self-made 90° die under different temperature. The results showed that under the same pressing speed, there was a better grain refinement and mechanical property improvement with the decreasing of pressing temperature, however, the tiny cracks on the surface of the processed samples increased. When squeezed at 250 , the average grain was refined from the initial 150um to10um. The tensile strength was changed to 350Mpa, and the elongation was of 10. Tensile fractures presented the increment of dimples structure, which was the result of refined α-Mg matrix and intermetallic compound β-Mg17Al12 phase by severe shear and plastic deformation at high temperature press.

Microstructure and Mechanical Properties of AZ81 Alloy with Gd

2011 ◽  
Vol 117-119 ◽  
pp. 1125-1128
Author(s):  
Wei Zhou ◽  
Quanan Li ◽  
Hai Juan Kang ◽  
Qing Zhang
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
High Temperature ◽  
Magnesium Alloy ◽  
Room Temperature ◽  
Microstructure And Mechanical Properties

The effect of Gd(gadolinium) on the microstructure and mechanical properties of aged AZ81 magnesium alloy were investigated. The results showed that 2wt.%Gd addition results in the obvious refinement of grain size, the decrease of β-Mg17Al12 phase and the formation of Al2Gd phase, and improves the mechanical properties of AZ81 alloy at room and high temperature. After the addition of 2wt.%Gd, the tensile strengths are enhanced from 203.2MPa to 249.3MPa at room temperature and from 157.2MPa to 197.3MPa at 150°C. Meanwhile, the elongations are increased.

Effects of Sr Addition on Mechanical Properties and Microstructure of Mg-6Al Magnesium Alloy

2011 ◽  
Vol 686 ◽  
pp. 120-124
Author(s):  
Jin Ping Fan ◽  
She Bin Wang ◽  
Bing She Xu
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Magnesium Alloy ◽  
Strengthening Mechanism ◽  
Microstructure And Mechanical Properties ◽  
Higher Temperature ◽  
Lower Temperature

The effects of Sr addition on the mechanical properties and microstructure of Mg-6Al mag- nesium alloy both at 25 °C and at 175 °C were investigated by means of OM, SEM and EDS and XRD. Upon the Sr addition of 2%, the tensile strength was increased by 7.2% to 184.4MPa at 25 °C, while it was increased by 30% to 155.4MPa at 175 °C. The strengthening mechanism of Mg-6Al-xSr at lower temperature (25 °C) was different from that at higher temperature (175°C). The results show that the addition of strontium effectively improved the microstructure and mechanical properties of magnesium alloy.

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