HEAT RESISTANT MAGNESIUM ALLOY

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PROBLEM TO BE SOLVED : To obtain a magnesium alloy which has excellent creep resistance without using any rare earth element. SOLUTION : The heat resistant magnesium alloy comprises, by mass, 4 to 9% aluminum, 1 to 5% copper, ≤4% zinc and 0.001 to 0.01% beryllium, and the balance magnesium, and has a metallic structure where a magnesium-aluminum-copper based compound is scattered into base phase magnesium.