This report wos prepared as an account of Government sponsored work. Neither the United States, nor the Commission, nor ony person acting on behalf of the Commission: A. Mokes any warranty or representation, express or implied, with respect to the accuracy, completeness, or usefulness of the information contained in this report, or that the use of any information, apparatus, method, or process disclosed in this report may not infringe privately owned rights; or B. Assumes any liabilities with respect to the use of, or for damages resulting from the use of information, apparatus, method, or process disclosed in this report. As used in the above, "person acting on behalf of the Commission" includes any employee or contractor of the Commission, or employee of such contractor, to the extent that such employee or contrnrtnr nf the Commi :uion, u. cr•uvluyee of such contractor pre• pares, disseminates, or provides access to, any information pursuant to his employment or contract with the Commission, or his employment with such contractor.

No abstract

No abstract

No abstract

The recovery of the residual electrical resistivities of pure Al and the Al (nominally 0.1 at.%) alloys Al-Mg, Al-Ga, and Al-Ag has been investigated following 1-MeV electron irradiation near 4°K. The addition of solute atoms caused a suppression of recovery normally observed in stage I (<70°K) for pure Al. This suppression amounted to 20-27% of the recovery of the pure sample. The stage-II (70-l70°K) recovery of pure Al occurs throughout the whole temperature range. However, well-defined recovery regions were observed between 70 and 90°K and between 120 and 140°K. In the alloy system, the recovery characteristics varied with the particular solute addition. Specifically^ Al-Mg showed two distinct substages of recovery in stage II, centered at 81 and 127°K. Al-Ga showed a doublet (two partially overlapping substages) centered at about 111°K. Al-Ag showed no distinct substages of recovery which could be attributed to the addition of the solute. None of the substage kinetics follow integral reaction orders when analyzed with chemical rate theory, indicating complex annealing processes.