Interstitial trapping during stage I E recovery of electron-irradiated pure aluminum and its dilute alloys with Ag and Mg
- 1 November 1976
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 47 (11), 4740-4745
- https://doi.org/10.1063/1.322530
Abstract
Recent experimental data on the influence of additional vacancies and Frenkel pairs upon the stage IE recovery of electron‐irradiated Al and Al‐15 ppm Ag and newly obtained results on the dilute alloy system Al‐ (5–65) ppm Mg are analyzed in terms of the chemical reaction rate theory. The corresponding rate equations are solved numerically yielding the following quantitative results: the capture radius of a vacancy for an Al self‐interstitial, rAlv=2.1a0; the capture radii of an Mg and of an Ag atom, respectively, rMg=0.33rv, rAg=0.6rv; the electrical resistivity of a unit concentration of vacancies, ρv=2.0×10−4 Ω cm/unit concentration. The best fit has been obtained with a value of Em=112 meV for the migration energy of la self‐interstitial and a frequency factor of 3×1014 sec−1.Keywords
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