The effects of second-alloying-element on the formability of Mg-Sn alloys in respect of the stacking fault energies of slip systems

Generalized stacking fault (GSF) energies of the basal 0001112̅0，prismatic 101̅0112̅0 and pyramidal 112̅2112̅3 slip systems in the primary phase of Mg-Sn based-alloys have been studied using first-principles calculations in this work, where twenty-one third elements (X) have been taken in to consideration for their solution in primary (Mg, Sn) phase. The relative positions of Sn and X in Mg142Sn1X1 supercell have been determined by searching the...