Abstract
The activation enthalpy for migration of dislocations of plastically deformed 8006 Al-alloy was investigated by positron annihilation lifetime technique. Plastic deformation using a hydraulic press produces mainly dislocations and may produce point defects. The type of defect was studied by isochronal annealing which determines the temperature range of recovery of each type. Only one type of defect (dislocations) was observed for the investigated sample and was found to be recovered within the range 455-700 K. Isothermal annealing by slow cooling was performed through this range and used in determination of the activation enthalpy of migration of dislocations which was found to be 0.26 ± 0.01 eV.
| Original language | English |
|---|---|
| Article number | 1650110 |
| Journal | International Journal of Modern Physics B |
| Volume | 30 |
| Issue number | 18 |
| DOIs | |
| State | Published - 20 Jul 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 World Scientific Publishing Company.
Keywords
- 8006 Al-alloy
- dislocations
- isochronal annealing
- isothermal annealing
- migration enthalpy
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Condensed Matter Physics
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