The dislocation core cut‐off parameter estimated from stacking‐fault nodes in a Cu‐Al alloy
- 1 August 1980
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 42 (2) , 185-194
- https://doi.org/10.1080/01418618009365809
Abstract
The width of symmetrical, threefold stacking‐fault nodes in a Cu‐13–43 at. % Al alloy has been measured as a function of node character by means of weak‐beam electron microscopy. The stacking‐fault energy (γ) has been determined independently of the measurement of the width of single, straight, dissociated dislocations on the same specimens. These results have been combined to estimate the dislocation core cut‐off parameter r 0 using anisotropic elasticity theories due to Scattergood and Bacon (1976), and also to ?. ?. ?. Kirchner and F. Prinz (1979, private communication).Keywords
This publication has 12 references indexed in Scilit:
- On the thickness periodicity of atomic-resolution images of dislocation coresPhilosophical Magazine A, 1978
- Dislocation core energies in the Peierls modelPhilosophical Magazine A, 1978
- Symmetric stacking fault nodes in anisotropic crystalsActa Metallurgica, 1976
- Effect of Core Structure on the Determination of the Stacking‐Fault Energy in Close‐Packed MetalsPhysica Status Solidi (b), 1974
- Investigations of dislocation strain fields using weak beamsPhilosophical Magazine, 1969
- THE STACKING-FAULT ENERGY IN α-SILVER – TIN ALLOYSCanadian Journal of Physics, 1967
- Energy and Atomic Configurations of Complete and Dissociated Dislocations. II. Screw Dislocation in an fcc MetalPhysical Review B, 1966
- Energy and Atomic Configuration of Complete and Dissociated Dislocations. I. Edge Dislocation in an fcc MetalPhysical Review B, 1966
- Dislocation interactions in face-centred cubic metals, with particular reference to stainless steelProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1959
- Dislocations and Cracks in Anisotropic ElasticityPhilosophical Magazine, 1958