Paper Title:
Isochronal and Isothermal Annealing of Wrought Aluminum Alloy
| Periodical | Defect and Diffusion Forum (Volumes 319 - 320) |
|---|---|
| Main Theme | Defects and Diffusion in Metals XIII |
| Edited by | D.J. Fisher |
| Pages | 37-42 |
| DOI | 10.4028/www.scientific.net/DDF.319-320.37 |
| Citation | M.A. Abdel-Rahman et al., 2011, Defect and Diffusion Forum, 319-320, 37 |
| Online since | October, 2011 |
| Authors | M.A. Abdel-Rahman, N.A. Kamel, Abdullah A. Refeay, Yahia A. Lotfy, Emad A. Badawi |
| Keywords | Aircraft Alloys, Electrical Measurement, Isothermal Annealing, Positron Annihilation Techniques |
| Price | US$ 28,- |
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Abstract
Positron annihilation lifetime (PAL) is one of the most important nuclear techniques used in material science. Electrical measurements are also used in material science. Samples of 25 % deformation have been used for these studies. Both positron annihilation lifetime and electrical measurements were used to determined the activation energy of migration the dislocation in 7075 alloy. The isothermal annealing measurements were performed at 643, 663, 683 and 703 K. The activation energy of migration the dislocation are obtained as 1.35 ± 0.16 eV and 1.25 ± 0.05 eV for positron annihilation lifetime and electrical techniques respectively.
