Non-parallel dissociation of dislocations in thin foils
- 1 July 1975
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 32 (1), 81-97
- https://doi.org/10.1080/14786437508222807
Abstract
The equilibrium shape of dissociated dislocations in thin foils of Cu-10 at.% Al is investigated by weak-beam electron microscopy. It is found that dislocations assume a truncated triangular shape caused principally by the reduction in line energy when Shockley partials rotate towards screw character. The effects of interaction image stresses and surface slip steps are generally small, but the former may be important in the case of spontaneous cross-slip of a dislocation at a surface.Keywords
This publication has 13 references indexed in Scilit:
- Relation between elastic-constant tensors of hexagonal and cubic structuresJournal of Applied Physics, 1974
- The principles and practice of the weak‐beam method of electron microscopyJournal of Microscopy, 1973
- Electron microscopy of a low stacking fault energy alloyActa Metallurgica, 1972
- Column approximation effects in high resolution electron microscopy using weak diffracted beamsPhilosophical Magazine, 1970
- Investigations of dislocation strain fields using weak beamsPhilosophical Magazine, 1969
- Unstable Directions of Shockley Partial DislocationsPhysica Status Solidi (b), 1969
- Unstable Dislocations in Anisotropic CrystalsPhysica Status Solidi (b), 1967
- UNEXPECTED CROSS SLIP IN GOLD FOILSApplied Physics Letters, 1962
- Extended jogs in dislocations in face-centred cubic metalsPhilosophical Magazine, 1962
- A surface effect associated with dislocation ribbonsPhilosophical Magazine, 1961