Observations on the climb of extended dislocations due to irradiation in the HVEM
- 1 July 1980
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 42 (1) , 31-46
- https://doi.org/10.1080/01418618008239354
Abstract
Observations on two low-stacking-fault-energy f.c.c. copper alloys are reported which show directly the climb of jogs on serew, edge and mixed dissociated dislocations as a results of irradiation at room temperature with 1 MeV electrons. The observations were obtained using the weak-beam technique to study thin foils in a 100 keV TEM before and after irradiation. However, it is found that under the conditions studied, most of the point defects appear rather to form small loops along the core of the partial dislocations, provided these have an edge component. This can result in an increase or a decrease in the dissociation width and in certain cases in the formation of constrictions.Keywords
This publication has 15 references indexed in Scilit:
- The Extension of Jogs on Dissociated Dislocations in F.C.C. MetalsPhysica Status Solidi (a), 1979
- The precipitation of point defects near grown-in dislocations during neutron irradiatonRadiation Effects, 1978
- Climb model of extended dislocations in f.c.c. metalsPhilosophical Magazine, 1977
- The formation and glide of jogs in low stacking-fault energy face-centred cubic materialsPhilosophical Magazine, 1977
- On the stacking-fault energies of copper alloysPhilosophical Magazine, 1977
- Vacancy dipoles in fatigued copperPhilosophical Magazine, 1976
- Observations of constrictions on dissociated dislocation lines in copper alloysPhilosophical Magazine, 1974
- An Evidence for a Long Range Interaction between a Dislocation and Interstitial AtomsJournal of the Physics Society Japan, 1973
- Investigations of dislocation strain fields using weak beamsPhilosophical Magazine, 1969
- Emission et absorption de défauts ponctuels par les dislocations dissociéesActa Metallurgica, 1963