The {10•2} extension twinning characteristics of magnesium alloys were found to be significantly influenced by the activation mode: tension parallel to the c-axis of the hexagonal close-packed unit cell or compression perpendicular to the c-axis. The Schmid factor criterion was successfully used to explain the activation of {10•2} extension twin variants and its related twin morphology and texture evolution for each activation mode.

Activation Mode Dependent {10−12} Twinning Characteristics in a Polycrystalline Magnesium Alloy. S.H.Park, S.G.Hong, C.S.Lee: Scripta Materialia, 2010, 62[4], 202-5