Analysis of deformation bands and cell structure in cyclically deformed near-1¯11-oriented copper single crystals

2021 ◽  
pp. 106517
Author(s):  
Tianchang Ma ◽  
Kentaro Chahara ◽  
Jingya Wu ◽  
Tomotaka Miyazawa ◽  
Toshiyuki Fujii
Keyword(s):  
Single Crystals ◽  
Cell Structure ◽  
Deformation Bands ◽  
Copper Single Crystals

On the formation of deformation bands in fatigued copper single crystals

2002 ◽  
Vol 82 (16) ◽  
pp. 3129-3147 ◽  
Author(s):  
S. X. Li ◽  
X. W. Li ◽  
Z. F. Zhang ◽  
Z. G. Wang ◽  
K. Lu
Keyword(s):  
Single Crystals ◽  
Deformation Bands ◽  
Copper Single Crystals

scholarly journals Microbands in 80% Drawn Copper Single Crystals With and Starting Orientations

Texture ◽  
1975 ◽  
Vol 2 (1) ◽  
pp. 17-34 ◽  
Author(s):  
S. Horiuchi ◽  
K. Asakura ◽  
G. Wassermann ◽  
J. Grewen
Keyword(s):  
Single Crystals ◽  
Cross Section ◽  
Cell Structure ◽  
Core Region ◽  
Degree Of Deformation ◽  
The Core ◽  
Drawing Direction ◽  
Stable Orientation ◽  
Copper Single Crystals ◽  
High Degree

Copper single crystals with the starting orientations <111> and <100> were drawn 80%. In the core region of the rods the orientations and the microstructures were investigated. The stable <111> crystal had a structure consisting of equiaxed cells and microbands which were formed parallel to the {111} planes with the exception of the {111} plane in the cross section of the rod. The <100> orientation was not entirely stable; the beginning of some orientational changes was observed at a high degree of deformation. In the parts with stable orientation a cylindrical cell structure was found with the long axes parallel to the drawing direction. Single microbands formed locally. Dislocation tangles around them finally developed, which lead to a change of the <100> orientation.

scholarly journals Texture and Hardness in Wire Drawn [001] Copper Single Crystals

1998 ◽  
Vol 31 (1-2) ◽  
pp. 1-19 ◽  
Author(s):  
A. Borbély ◽  
L. S. Tóth ◽  
B. Bolle
Keyword(s):  
Single Crystals ◽  
Vickers Hardness ◽  
Wire Drawing ◽  
Plasticity Model ◽  
Deformation Bands ◽  
Crystal Plasticity Model ◽  
Pole Figures ◽  
Type Rate ◽  
Copper Single Crystals ◽  
Measured Hardness

The crystallographic texture and Vickers hardness which develop during wire-drawing of [001] oriented copper single crystals have been studied experimentally as well by simulations. The experiments revealed orientation changes producing cross-shaped patterns in the {200} pole figures and important variations in the Vickers hardness across the diameter. Metallographic investigations showed the presence of deformation bands perpendicular to the initial 〈100〉 directions. By adopting a model for the velocity field inside the die, simulations have been carried out by using a Taylor type rate sensitive crystal plasticity model, including microscopic hardening. The simulated pole figures show the features of the experimental ones and the predicted stress levels correlate well with the measured hardness data.

Deformation bands in cyclically deformed copper single crystals

2000 ◽  
Vol 80 (8) ◽  
pp. 1901-1912 ◽  
Author(s):  
X. W. Li ◽  
Z. G. Wang ◽  
S. X. Li
Keyword(s):  
Single Crystals ◽  
Deformation Bands ◽  
Copper Single Crystals
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