An Mg-Li based alloy containing Scandium (Sc) has been prepared by melting and solidifying it in a carbon steel crucible, and by extruding at a billet preheating temperature of 200C with an extrusion ratio of 28. Age heat treatments and thermomechanical An Mg-Li based alloy containing Scandium (Sc) has been prepared by melting and solidifying it in a carbon steel crucible, and by extruding at a billet preheating temperature of 200C with an extrusion ratio of 28. Age heat treatments and thermomechanical