| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat resistant magnesium allay and a heat resistant member thereof excellent in strength and corrosion resistance. SOLUTION: This magnesium alloy has a composition containing 6.0 to 8.0% Al, 2.0 to 4.0% Ca, 0.1 to 0.8% Mn, 0.001 to 0.05% Sr, 0 to 0.5% Si and 0 to 0.5% Zn, and the balance Mg with inevitable impurities. The heat resistant member is obtained by subjecting the same to injection molding into a die in a half-melted state with a solid phase ratio of <=50%. In this way, the magnesium alloy having excellent strength and heat resistance equal to those of the conventional material cap be obtained. The alloy is also excellent in castability, and the heat resistant member excellent in those characteristics can easily be obtained.
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