Enhanced Tensile Properties of Mg Sheets by a Unique Thermomechanical Processing Method

A unique thermomechanical processing method combining fast rolling with large thickness reduction and short-time annealing (FR-STA) was developed to produce lower-cost magnesium (Mg) sheets with improved tensile properties. Sheets of Mg-3Al-1Zn-0.3Mn (wt pct) and Mg-1Zn-0.2Nd-0.2Zr (wt pct) were produced by FR incorporating large thickness reduction, exhibiting enhanced strength and improved ductility relative to slow rolling with small thickness reduction after STA.