Effects of repetitive upsetting-extrusion parameters on microstructure and texture evolution of Mg–Gd–Y–Zn–Zr alloy

2019 ◽  
Vol 790 ◽  
pp. 48-57 ◽  
Author(s):  
Guanshi Zhang ◽  
Zhimin Zhang ◽  
Xubin Li ◽  
Zhaoming Yan ◽  
Xin Che ◽  
...  
Keyword(s):  
Texture Evolution ◽  
Zr Alloy

Strain induced transformation, dynamic recrystallization and texture evolution during hot compression of an extruded Mg-Gd-Y-Zn-Zr alloy

2020 ◽  
Vol 778 ◽  
pp. 139021 ◽  
Author(s):  
H. Esmaeilpour ◽  
A. Zarei-Hanzaki ◽  
N. Eftekhari ◽  
H.R. Abedi ◽  
M.R. Ghandehari Ferdowsi
Keyword(s):  
Dynamic Recrystallization ◽  
Texture Evolution ◽  
Hot Compression ◽  
Zr Alloy

Microstructure and Texture Evolution of Repetitive Upsetting-Extruded (RUEed) Mg-Gd-Y-Zn-Zr Alloy after Hot Compression

2021 ◽  
Vol 1035 ◽  
pp. 63-71
Author(s):  
Bei Bei Dong ◽  
Zhi Min Zhang ◽  
Jian Min Yu ◽  
Xin Che
Keyword(s):  
Volume Fraction ◽  
Texture Evolution ◽  
Hot Compression ◽  
Compression Tests ◽  
Texture Intensity ◽  
Average Grain Size ◽  
Strain Stress ◽  
Increasing Temperature ◽  
Compression Texture ◽  
Zr Alloy

In order to determine the deformation temperature of next pass, the hot compression tests were performed by Gleeble-3800 at different temperature form 380 to 420 °C. The microstructure and texture evolution of repetitive upsetting-extruded (RUEed) Mg-Gd-Y-Zn-Zr alloy during hot compression were studied by electron backscattering diffraction (EBSD) analysis. The results showed that the dynamic recrystallization (DRX) occured during the hot compression processing from the strain-stress flow curves. When the temperature increased to 420 °C, the average grain size reduced to 6.64 μm, and the volume fraction of DRXed grains increased to 81.5%. All the compressed alloys exhibited a typical compression texture, the maximum texture intensity of {0001} plane gradually decreased with increasing temperature. When the compression temperature was up to 420°C, the the maximum texture intensity of {0001} plane was 3.207 due to the effect of DRXed grains. Finally, 420°C is chosen as the next deformation of next pass because of the more precipitation and DRXed grains.

Texture evolution during annealing of hot extruded U-10wt%Zr alloy by in situ neutron diffraction

2017 ◽  
Vol 497 ◽  
pp. 10-15 ◽  
Author(s):  
S. Irukuvarghula ◽  
B. Blamer ◽  
S. Ahn ◽  
S.C. Vogel ◽  
A.S. Losko ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Texture Evolution ◽  
In Situ Neutron Diffraction ◽  
Zr Alloy

Microstructure and texture evolution of an Mg–Gd–Y–Nd–Zr alloy during friction stir processing

2016 ◽  
Vol 659 ◽  
pp. 51-59 ◽  
Author(s):  
Renlong Xin ◽  
Xuan Zheng ◽  
Zhe Liu ◽  
Dejia Liu ◽  
Risheng Qiu ◽  
...  
Keyword(s):  
Friction Stir Processing ◽  
Texture Evolution ◽  
Friction Stir ◽  
Zr Alloy

scholarly journals Microstructure and Texture Evolution of Mg–Gd–Y–Zn–Zr Alloy by Compression–Torsion Deformation

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2773 ◽  
Author(s):  
Ping Xu ◽  
Jianmin Yu ◽  
Zhimin Zhang
Keyword(s):  
Dynamic Recrystallization ◽  
Strain Rate ◽  
Texture Evolution ◽  
Continuous Dynamic Recrystallization ◽  
Recrystallization Mechanism ◽  
Torsion Unit ◽  
Continuous Dynamic ◽  
Gleeble 3500 ◽  
Torsion Deformation ◽  
Zr Alloy

Mg–13Gd–4Y–2Zn–0.5Zr alloy was subjected to compression–torsion deformation at 450 °C with a strain rate of 0.001–0.5 s−1 using a Gleeble 3500 torsion unit. The effects of compression–torsion deformation on the microstructure and texture were studied, and the results showed that with the decrease of strain rate, the texture strength decreased, the number of dynamic precipitated particles increased, the degree of recrystallization increased, and the dynamic recrystallization mechanism changed from a continuous dynamic recrystallization mechanism to a continuous and discontinuous dynamic recrystallization mechanism. Along the direction of increasing radius, the degree of dynamic recrystallized grain (DRX) increased, the number of dynamic precipitated particles increased, and the texture strength slightly increased.

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