Abstract: A magnesium alloy containing: Al: 0.2-1.6 wt. % Zn: 0.2-0.8 wt. % 5 Mn: 0.1-0.5 wt. % Zr 0-0.5 wt. % La: 1-3.5 wt. % Y: 0.05-3.5 wt. % Ce: 0-2 wt. % 10 Nd: 0-2 wt. % Gd: 0-3 wt. % Pr: 0-0.5 wt. % Be: 0-20 ppm the balance being Mg and incidental elements.

Abstract: A casting magnesium alloy for providing improved thermal conductivity A magnesium alloy for providing improved thermal conductivity includes from 1 wt.% to 5 wt.% of lanthanum, from 1 wt.% to 5 wt.% of cerium or a combination thereof, and from 0.5 wt.% to 3 wt.% of neodymium, from 0.5 wt.% to 3 wt.% of gadolinium or a combination thereof, and from 0.0 wt.% to 0.2 wt.% of yttrium, and up to 0.8 wt.% of praseodymium, and up to 0.8 wt.% manganese, and up to 1.0 wt.% aluminium, and up to 0.8 wt.% zinc, and up to 20ppm beryllium, and with balanced magnesium and inevitable impurities.

Abstract: A magnesium alloy containing: Al: 0.2-1.6 wt. % Zn: 0.2-0.8 wt. % 5 Mn: 0.1-0.5 wt. % Zr 0-0.5 wt. % La: 1-3.5 wt. % Y: 0.05-3.5 wt. % Ce: 0-2 wt. % 10 Nd: 0-2 wt. % Gd: 0-3 wt. % Pr: 0-0.5 wt. % Be: 0-20 ppm the balance being Mg and incidental elements.

Abstract: Al—Si—Mg castings to provide enhanced mechanical properties for structural applications comprising (1) alloy optimisation with 8.5 to 12.5 wt. % Si, 0.46 to 1.0 wt. % Mg, 0.1 to 0.2 wt. % Ti, 0.05 to 0.25 wt. % Mn, 0.01 to 0.02 wt. % Sr, 0.004 to 0.1 wt. % B and other impurity elements of Cu, Fe, Zn each less than 0.15 wt. % and the balance of Al; (2) optimised melt treatment with appropriate melting, modification, degassing and grain refining; (3) appropriate type of grain refiner with optimised amount and method to add into the aluminium melt, and (4) optimised heat treatment process. When being utilized to make shape aluminium alloy castings with gravity casting process, the castings have been achieved the 0.2% offset yield strength of greater than 310 MPa, the ultimate tensile strength of greater than 365 MPa and the elongation of greater than 10%.