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The Interaction of Intersecting Flexible Dislocations in the Presence of Friction Forces in the Lattice. (The Case for Repelling Dislocations)
Author(s) -
Predvoditelev A. A.,
Bushueva G. V.,
Bulygina T. I.,
Vodzinskaya N.
Publication year - 1969
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.19690360103
Subject(s) - dislocation , materials science , condensed matter physics , lattice (music) , dislocation creep , bending , peierls stress , intersection (aeronautics) , partial dislocations , physics , composite material , aerospace engineering , acoustics , engineering
The interaction of flexible repelling dislocations and their passage through one another is considered. It is shown that the process of dislocation interaction may be broken into two parts: a) gradual bending accompanied by the increase of the energy of the dislocation configuration; b) loss of stability; here the dislocation system undergoes a transition from the quasi‐static to the dynamic state. Dislocation intersection takes place under dynamic conditions. The analysis was performed for two cases: infinite crystal and thin plate. There is a certain difference in the dislocation shapes in both cases. The theoretical calculations are found to be in agreement with experimental data.