The effect of different forms of strain energy functions in hyperelasticity-based crystal plasticity models on texture evolution and mechanical response of face-centered cubic crystals

2014 ◽  
Vol 100 (4) ◽  
pp. 300-320 ◽  
Author(s):  
Hyun-Gyu Kim
Keyword(s):  
Crystal Plasticity ◽  
Strain Energy ◽  
Mechanical Response ◽  
Texture Evolution ◽  
Face Centered Cubic ◽  
Energy Functions ◽  
Cubic Crystals ◽  
Face Centered ◽  
Strain Energy Functions

An Sem/Ebsd Study of Shear Bands Formation in Al-0.23%wt.Zr Alloy Deformed in Plane Strain Compression / Krystalograficzne Aspekty Formowania Sie Pasm Scinania W Stopie Al-0.23%Wag.Zr Odkształcanym W Próbie Nieswobodnego Sciskania

2013 ◽  
Vol 58 (1) ◽  
pp. 145-150 ◽  
Author(s):  
H. Paul ◽  
P. Uliasz ◽  
M. Miszczyk ◽  
W. Skuza ◽  
T. Knych
Keyword(s):  
Crystal Lattice ◽  
Grain Boundaries ◽  
Texture Evolution ◽  
Shear Bands ◽  
Shear Direction ◽  
Face Centered Cubic ◽  
Electron Backscattered Diffraction ◽  
Cubic Metals ◽  
Slip Planes ◽  
Face Centered

The crystal lattice rotations induced by shear bands formation have been examined in order to investigate the influence of grain boundaries on slip propagation and the resulting texture evolution. The issue was analysed on Al-0.23wt.%Zr alloy as a representative of face centered cubic metals with medium-to-high stacking fault energy. After solidification, the microstructure of the alloy was composed of flat, twin-oriented, large grains. The samples were cut-off from the as-cast ingot in such a way that the twinning planes were situated almost parallel to the compression plane. The samples were then deformed at 77K in channel-die up to strains of 0.69. To correlate the substructure with the slip patterns, the deformed specimens were examined by SEM equipped with a field emission gun and electron backscattered diffraction facilities. Microtexture measurements showed that strictly defined crystal lattice re-orientations occurred in the sample volumes situated within the area of the broad macroscopic shear bands (MSB), although the grains initially had quite different crystallographic orientations. Independently of the grain orientation, their crystal lattice rotated in such a way that one of the f111g slip planes became nearly parallel to the plane of maximum shear. This facilitates the slip propagation across the grain boundaries along the shear direction without any visible variation in the slip plane. A natural consequence of this rotation is the formation of specific MSB microtextures which facilitates slip propagation across grain boundaries.

scholarly journals The strain hardening of micro-sized face-centered-cubic single crystal metals: A crystal plasticity study

AIP Advances ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 125208 ◽  
Author(s):  
Huili Guo ◽  
Chenlin Li ◽  
Xu Zhang ◽  
Fulin Shang
Keyword(s):  
Single Crystal ◽  
Strain Hardening ◽  
Crystal Plasticity ◽  
Face Centered Cubic ◽  
Face Centered

Monte Carlo Study of Dense Monolayer and Bilayer Films on the (100) Plane of Face-Centered Cubic Crystals

Langmuir ◽  
1999 ◽  
Vol 15 (10) ◽  
pp. 3642-3652 ◽  
Author(s):  
A. Patrykiejew ◽  
S. Sokołowski ◽  
T. Zientarski ◽  
K. Binder
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Study ◽  
Face Centered Cubic ◽  
Cubic Crystals ◽  
Bilayer Films ◽  
Face Centered
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