Effect of Sn on the microstructure evolution of AZ80 magnesium alloy during hot compression

2017 ◽  
Vol 727 ◽  
pp. 205-214 ◽  
Author(s):  
Luyao Jiang ◽  
Weijiu Huang ◽  
Dingfei Zhang ◽  
Fei Guo ◽  
Hansong Xue ◽  
...  
2014 ◽  
Vol 55 (2) ◽  
pp. 270-274 ◽  
Author(s):  
Qingfeng Zhu ◽  
Lei Li ◽  
Zhiqiang Zhang ◽  
Zhihao Zhao ◽  
Yubo Zuo ◽  
...  

Author(s):  
Paresh Prakash ◽  
Amir Hadadzadeh ◽  
Sugrib Kumar Shaha ◽  
Mark A. Whitney ◽  
Mary A. Wells ◽  
...  

2018 ◽  
Vol 10 ◽  
pp. 967-972 ◽  
Author(s):  
Jinlong Zhang ◽  
Hui Xie ◽  
Zhenlin Lu ◽  
Ying Ma ◽  
Shiping Tao ◽  
...  

2008 ◽  
Vol 584-586 ◽  
pp. 300-305 ◽  
Author(s):  
Dogan Arpacay ◽  
Sang Bong Yi ◽  
Miloš Janeček ◽  
Adem Bakkaloglu ◽  
Lothar Wagner

The microstructure evolution during high pressure torsion and its influence on the mechanical properties of AZ80 magnesium alloy is presented in this study. Significant grain refinement was observed after high pressure torsion, while the homogeneity of the grain structure increases with the number of revolutions. Grain size decreases to about 50 nm after 15 revolutions. The microhardness profiles measured at through-thickness and through-width directions show no significant variation at different positions of the sample. Moreover, the negligible effect of the revolution number on the microhardness value was observed.


2019 ◽  
Vol 821 ◽  
pp. 209-214
Author(s):  
Qi Chi Le ◽  
Xing Rui Chen ◽  
Shao Chen Ning

The traditional fixed-frequency ultrasonic technology (FUT) and the variable-frequency ultrasonic technology (VUT) were used in direct-chill (DC) casting of an AZ80 magnesium alloy with the diameter of ∅255mm. The microstructure evolution, mechanical properties and macro-segment of Al element were investigated. The results show that both FUT and VUT can refine the α-Mg grain while the VUT has better efficiency which can reduce the grain size from 679-1454 μm (DC) to 150-241 μm. The homogeneity of grain size was also improved. These two technologies can also change the morphology and distribution of Mg17Al12 phase and tiny and refined morphology of Mg17Al12 phase and a homogeneous distribution can be obtained after VUT treatment. The YS and UTS were increased following the microstructure evolution, displaying the YS of 88.9-95.1 MPa and UTS of 164.3-173.1 MPa after VUT treatment. The segregation rate of Al element were improved with VUT treatment. Keywords: magnesium alloy; variable frequency ultrasonic technology; microstructure; mechanical properties;


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