Abstract
The lithium concentration in an Al-2.5 at% Li alloy is found to decrease after heating the alloy for different intervals at 560 degree C then quenching it to room temperature. Dilatometric, electrical resistivity, and internal friction measurements are used to study the Li loss from the alloy which is found to start above 245 degree C. The total amount of Li loss is found to depend linearly on temperature. The analysis of the results proves that the process of the Li loss is controlled primarily by a surface reaction.