An ultra-high strength and low-cost magnesium wrought alloy, Mg-1Al-1Ca-0.3Zn-0.4Mn (wt. %), has been fabricated by conventional extrusion, with yield strength of ~ 435 MPa, the ultimate tensile strength of ~ 449 MPa and the elongation of ~ 4.2%. Dispersive nano-precipitations, e.g., the Al2Ca phase and AlMn phase, have been induced during extrusion, which can effectively pin ...