High temperature structural Mg alloys containing misch metal

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The present invention refers to metal microscopic relates to magnesium alloy for high-temperature structure in the, the present purpose of the invention to the milligram-(Al, Zn) (misch metal) having excellent heat resistance and is highly suitable for added to metal microscopic (multi-phases) or multiphase on number 2 with it in a positively a network architecture utilised is suppressed and the deformation of magnesium metal matrix at high temperatures, further base added to other elements is enhanced or modified in high when deposited/tissue enriched with structure network or intake port is heated by maintaining high-strength, in excellent in mechanical characteristic for high-temperature structure in the metal microscopic magnesium alloy by a rope.. The present invention according to microscopic magnesium alloy for high-temperature structure in the metal the general formula milligram 100-x-y-z A x B y C z is represented by, the zinc (Zn) or aluminum (Al) A here exhibits element, the microscopic B metal, element C silicon (Si), boron (B), manganese (Mn), nickel (Ni), copper (cubic), tin (Sn), yttrium (Y), in (P), the (Ag), strontium (Sr), calcium (Ca) that is at least one selected from one or more element and, said x, y, each z x≤ 6at %, 0.8at % ≤ y≤ 7at %, characterized in that the z≤ 2at %.