The elastic interaction between edge dislocations and dipoles
- 1 December 1964
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 10 (108) , 1011-1025
- https://doi.org/10.1080/14786436408225408
Abstract
The interaction force between an edge dislocation and a parallel dislocation dipole has been calculated, assuming an isotropic medium. Both of the 45° positions of equilibrium of the dipole have been considered and also the effect of the rotation of the dipole due to the interaction with the dislocation. The magnitude of the interaction force acting in the direction of the Burgers vector has been compared with the force required to make the dipole glide along its slip cylinder. It has been shown that in a face-centred cubic metal such as copper, the dipole should be swept along by a moving dislocation under a low stress. The sweeping up of dipoles by dislocations has been used to explain the formation of dislocation ‘braids’ observed in the early stages of the deformation of face-centred and hexagonal metals.Keywords
This publication has 5 references indexed in Scilit:
- The long-range forces between dislocation loops and dislocationsPhilosophical Magazine, 1964
- Dislocation Multipoles and Their Role in Strain-HardeningJournal of Applied Physics, 1964
- Die Versetzungsanordnung in plastisch verformten KupfereinkristallenPhysica Status Solidi (b), 1963
- Dislocation dipole formation in deformed crystalsActa Metallurgica, 1962
- A Theory of the Formation of Slip Bands In Face-Centred Cubic CrystalsJournal of the Physics Society Japan, 1954