Dissociation of sessile dislocations
- 1 June 1994
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Letters
- Vol. 69 (6) , 305-308
- https://doi.org/10.1080/09500839408242437
Abstract
Dissociation of dislocations into partials, which are not freely mobile on the plane of dissociation, is discussed in the framework of a model where the frictional force can be described by a Peierls potential. It has been shown that, when the metastable positions of dissociated dislocations are not considered, the resulting energy of the stacking fault connecting two partials may be underestimated.Keywords
This publication has 7 references indexed in Scilit:
- Measurements of antiphase boundary and complex stacking fault energies in binary and B-doped Ni3Al using TEMPhilosophical Magazine A, 1993
- A method for simulating electron microscope dislocation imagesMaterials Science and Engineering: A, 1993
- The compositional dependence of antiphase-boundary energies and the mechanism of anomalous flow in Ni3Al alloysPhilosophical Magazine A, 1993
- Methods for determining precise values of antiphase boundary energies in Ni3AlPhilosophical Magazine Letters, 1991
- TEM observation of the fourfold dissociation of superlattice dislocations and the determination of the fault energies in Ni3(A1, Ta)Philosophical Magazine A, 1991
- Weak-beam study of superlattice dislocations moving on cube planes in Ni3(Al, Ti) deformed at room temperaturePhilosophical Magazine A, 1988
- Dislocation line stability in Ni3AIPhilosophical Magazine A, 1986