“…Appropriate alloying elements were introduced to achieve alloy strengthening by utilizing strengthening mechanisms such as grain size, secondary phase, solid solution and precipitation strengthening [9,10]. The effects of alloying elements, such as Al, Zn, Mn, Ca, and rare earth (RE), on the microstructure and mechanical properties of Mg alloys have been widely studied [2,[11][12][13][14][15]. The most widely used die-cast Mg alloys are Mg-Al series alloys, such as AZ91, AM50 and AE44 [3].…”