HEAT RESISTANT MAGNESIUM ALLOY FOR CASTING, CASTING MADE OF MAGNESIUM ALLOY, AND ITS PRODUCTION ME

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PROBLEM TO BE SOLVED : To provide a heat resistant magnesium alloy for casting excellent in heat resistance and castability. SOLUTION : The heat resistant magnesium alloy for casting contains, by mass, 0.2 to 3% Ca, 1 to 4% rare earth elements (R.E.) and <1% Zn, and the balance Mg with inevitable impurities, and is excellent in castability and heat resistance. Its castability is secured by suppressing the Zn content while securing the heat resistance by Ca.