Electron backscatter diffraction analysis of strain distribution in adiabatic shear band and its nearby area in Ti–3Al–5Mo–4·5V alloy

2012 ◽  
Vol 28 (2) ◽  
pp. 165-170 ◽  
Author(s):  
Y Yang ◽  
F Jiang ◽  
M Yang ◽  
X M Li ◽  
H G Zheng ◽  
...  
Keyword(s):  
Shear Band ◽  
Diffraction Analysis ◽  
Strain Distribution ◽  
Electron Backscatter Diffraction ◽  
Adiabatic Shear Band ◽  
Adiabatic Shear ◽  
Electron Backscatter ◽  
Backscatter Diffraction

Analysis and characterization by electron backscatter diffraction of microstructural evolution in the adiabatic shear bands in Fe–Cr–Ni alloys

2009 ◽  
Vol 24 (8) ◽  
pp. 2617-2627 ◽  
Author(s):  
Huajie Yang ◽  
Yongbo Xu ◽  
Yasuaki Seki ◽  
Vitali F. Nesterenko ◽  
Marc André Meyers
Keyword(s):  
Microstructural Evolution ◽  
Electron Backscatter Diffraction ◽  
Shear Bands ◽  
Adiabatic Shear ◽  
Adiabatic Shear Bands ◽  
Localized Deformation ◽  
Ni Alloys ◽  
Electron Backscatter ◽  
Backscatter Diffraction ◽  
Equiaxed Grains

The microstructural evolution inside adiabatic shear bands in Fe–Cr–Ni alloys dynamically deformed (strain rates > 104 s−1) by the collapse of an explosively driven, thick-walled cylinder under prescribed strain conditions was examined by electron backscatter diffraction. The observed structure within the bands consisted of both equiaxed and elongated grains with a size of ∼200 nm. These fine microstructures can be attributed to recrystallization; it is proposed that the elongated grains may be developed simultaneously with localized deformation (dynamic recrystallization), and the equiaxed grains may be formed subsequently to deformation (static recrystallization). These recrystallized structures can be explained by a rotational recrystallization mechanism.

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