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Atomic Configuration of 1/2 <111> {110} Edge Dislocations in Pure V, W, Mo, and Fe and in Fe Containing C Interstitials
Author(s) -
De hosson J. Th. M.,
Sleeswyk A. W.
Publication year - 1975
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220710221
Subject(s) - burgers vector , dislocation , materials science , peierls stress , stacking fault , condensed matter physics , stacking fault energy , atom (system on chip) , crystallography , atomic physics , anisotropy , enhanced data rates for gsm evolution , partial dislocations , molecular physics , dislocation creep , chemistry , physics , optics , telecommunications , computer science , embedded system
The atomic configuration around a perfect edge dislocation with ‐1/2‐ <111> Burgers vector lying on a {110} slip plane is calculated using the Wilson and Johnson potentials for V, W, Mo, and Fe. The boundary conditions are given by anisotropic elasticity theory. A narrow dislocation without any stacking fault results but in all these metals somedisplacement occurs in the core parallel to the dislocation line. Johnson's iron‐carbon potential is used to calculate the positions with maximum energy gain for carbon atoms near these dislocations. The strongestbinding energy of the carbon atom of ‐0.70 eV is found for the di‐latational sink close to the dislocation line.