scholarly journals Modeling of the dynamic recrystallization behavior of Csf/AZ91D magnesium matrix composites during hot compression process

2017 ◽  
Vol 708 ◽  
pp. 328-336 ◽  
Author(s):  
Zhenjun Wang ◽  
Biao Huang ◽  
Lehua Qi ◽  
Gui Wang ◽  
Matthew S. Dargusch
Keyword(s):  
Dynamic Recrystallization ◽  
Hot Compression ◽  
Matrix Composites ◽  
Recrystallization Behavior ◽  
Compression Process ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Dynamic Recrystallization Behavior

Dynamic recrystallization behavior and texture evolution of as-cast Fe-4.53%Si non-oriented electrical steel during hot compression

2021 ◽  
Vol 118 (5) ◽  
pp. 509
Author(s):  
Yong Wan ◽  
Kongkong Feng ◽  
Liqiang Zhang ◽  
Liangjun Chen ◽  
Yonghong Wen ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Electrical Steel ◽  
Electron Backscatter Diffraction ◽  
Texture Evolution ◽  
Optical Microscope ◽  
Hot Compression ◽  
Recrystallization Behavior ◽  
Stored Energy ◽  
Compression Process ◽  
Dynamic Recrystallization Behavior

The dynamic recrystallization behavior and texture evolution of surface, quarter and center layers of as-cast Fe-4.53%Si non-oriented electrical steel during hot compression were studied by optical microscope and electron backscatter diffraction. The surface layer of cast ingot exhibited elongated columnar grains with pronounced {001}<130> and {001}<120> textures, while the quarter and center layers of ingot were mainly large equiaxed grains corresponding to strong {100}<0vw> texture. During hot compression, the shear bands were easy to form in the deformed grains with higher stored energy such as {110}<001>, {014}<114> and {312}<332> grains which is conducive to promoting recrystallization. Due to that the shear band was not easy to form in the {100}<0vw> grain with lower stored energy, the large grains corresponding to strong {100}<0vw> texture in the quarter and center layers of ingot undergone obvious deformation and slight orientation transformation during hot compression process which proved the good heritability of as-cast {100} texture.

scholarly journals Dynamic recrystallization behavior of the Ta-containing TiAl alloy in isothermal deformation

2020 ◽  
Vol 321 ◽  
pp. 12008
Author(s):  
Y.Y. Luo ◽  
X.N. Mao ◽  
H.Y. Yang ◽  
Y.F. Yin ◽  
Z.Z. Zhao ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Strain Rate ◽  
Tial Alloy ◽  
Grain Boundary Sliding ◽  
Strain Rates ◽  
Recrystallization Behavior ◽  
Compression Process ◽  
Dynamic Recrystallization Behavior ◽  
Boundary Sliding ◽  
Mechanical Twins

The dynamic recrystallization behavior of as-cast Ti-46.5Al-3Ta-2Cr-0.2W alloy during isothermal compression process with nominal deformation of 50% and strain rates from 0.01s to 1s was investigated by electron microscopy. The results showed that the deformation mechanism of this alloy can be concluded as grain boundary sliding and mechanical twins, which induce the final dynamic recrystallization. The phase boundary bulging was found to be the major nucleation mechanism responsible for the lamellar globularization and the formation of recrystallized γ grains inside the lamellar colony under the high strain rate. The recrystallized γ grains induced by the twinning is the main mechanism for refining α2 lamellar microstructures under low strain rate.

Sign in / Sign up

Export Citation Format

Share Document