An elevated temperature Mg-Dy-Zn alloy with long period stacking ordered phase by extrusion

► A Mg-2Dy-0.5Zn (at.%) alloy was prepared by extrusion and ageing treatment. ► This alloy exhibits the excellent tensile strengths at 300 °C, i.e., σ0.2 = 245 MPa; σb = 260 MPa. ► The excellent strengths are attributed to the high volume fraction of LPSO phase.