scholarly journals Validation of the Concurrent Atomistic-Continuum Method on Screw Dislocation/Stacking Fault Interactions

Crystals ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 120 ◽  
Author(s):  
Shuozhi Xu ◽  
Liming Xiong ◽  
Youping Chen ◽  
David McDowell
Keyword(s):  
Screw Dislocation ◽  
Stacking Fault ◽  
Fault Interactions

Stacking Fault – Stacking Fault Interactions and Cubic Inclusions in 6H-SiC: an Ab Initio Study

2003 ◽  
Vol 433-436 ◽  
pp. 921-924 ◽  
Author(s):  
Hisaomi Iwata ◽  
Ulf Lindefelt ◽  
Sven Öberg ◽  
Patrick R. Briddon
Keyword(s):  
Ab Initio ◽  
Stacking Fault ◽  
Ab Initio Study ◽  
Fault Interactions

Ab initio study of 3C inclusions and stacking fault–stacking fault interactions in 6H-SiC

2003 ◽  
Vol 94 (8) ◽  
pp. 4972 ◽  
Author(s):  
H. P. Iwata ◽  
U. Lindefelt ◽  
S. Öberg ◽  
P. R. Briddon
Keyword(s):  
Ab Initio ◽  
Stacking Fault ◽  
Ab Initio Study ◽  
Fault Interactions

Screw dislocation–spherical void interactions in fcc metals and their dependence on stacking fault energy

2019 ◽  
Vol 54 (17) ◽  
pp. 11509-11525 ◽  
Author(s):  
Sho Hayakawa ◽  
Kohei Doihara ◽  
Taira Okita ◽  
Mitsuhiro Itakura ◽  
Masaatsu Aichi ◽  
...  
Keyword(s):  
Screw Dislocation ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Spherical Void ◽  
Fcc Metals

Molecular dynamics simulation of screw dislocation interaction with stacking fault tetrahedron in face-centered cubic Cu

2007 ◽  
Vol 22 (10) ◽  
pp. 2758-2769 ◽  
Author(s):  
Hyon-Jee Lee ◽  
Jae-Hyeok Shim ◽  
Brian D. Wirth
Keyword(s):  
Molecular Dynamics ◽  
Screw Dislocation ◽  
Stacking Fault ◽  
Dynamics Simulation ◽  
Face Centered Cubic ◽  
Dislocation Interaction ◽  
Complete Absorption ◽  
Stacking Fault Tetrahedron ◽  
Face Centered ◽  
Dynamics Simulations

The interaction of a gliding screw dislocation with stacking fault tetrahedron (SFT) in face-centered cubic (fcc) copper (Cu) was studied using molecular dynamics simulations. Upon intersection, the screw dislocation spontaneously cross slips on the SFT face. One of the cross-slipped Shockley partials glides toward the SFT base, partially absorbing the SFT. At low applied stress, partial absorption produces a superjog, with detachment of the trailing Shockley partial via an Orowan process. This leaves a small perfect SFT and a truncated base behind, which subsequently form a sheared SFT with a pair of opposite sense ledges. At higher applied shear stress, the ledges can self-heal by gliding toward an SFT apex and transform the sheared SFT into a perfect SFT. However, complete absorption or collapse of an SFT (or sheared SFT) by a moving screw dislocation is not observed. These observations provide insights into defect-free channel formation in deformed irradiated Cu.

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