Abstract
Indium-magnesium alloys single crystals were deformed in tension and compression for basal, prismatic and pyramidal slip and the variations of the critical resolved shear stress against the temperature are described. For basal slip, indium alloying shows a solution hardening with the power two thirds of the indium concentration and a repeated yielding phenomenon within a certain temperature range; the repeated yielding is related to the movement of indium atoms. For non basal slip, the concentration dependence of the yield stress is very small in alloys containing up to 2 at. % of indium strained with a low strain rate.
