Effect of Micro-Alloying Elements on Deformation Behavior in Mg–Y Binary Alloys

The effect of minor addition of yttrium element on deformation behavior was investigated using Mg–X at%Y (X = 0.01, 0.02, 0.03, 0.04 and 0.05) dilute alloys and pure magnesium with an average grain size of about 50 µm. The stress and strain curves in all the alloys showed a sigmoidal shape in the compression tests, which suggested the formation of {10\bar{1}2}-type twinning due to the lack of slip system. On the other hand, yttrium atom addition...