| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnesium alloy for forging, which has superior mechanical properties and forgeability, and to provide a method for manufacturing the same. SOLUTION: The magnesium alloy for forging is a cast body comprising, by wt.% with respect to the total weight, 6-10% Al, 0.4-2% Zn, 0.05-0.3% Mn, 0.4-1.5% Ca and unavoidable impurities; and has dendrite arms having spaces of 0.5-15 μm between the arms and crystallized products with grain sizes of 1-10 μm. The magnesium alloy for forging also may include, by wt.% with respect to the total weight, 0.01-0.3% Sb or 0.006-0.2% Be, and may also include, by wt.% with respect to the total weight, 1.2% or less Ce. The method for manufacturing the magnesium alloy for forging includes: casting the magnesium alloy comprising, by wt.% with respect to the total weight, 6-10% Al, 0.4-2% Zn, 0.05-0.3% Mn, 0.4-1.5% Ca and unavoidable impurities; and cooling the obtained cast body at a rate of 12-40°C/s. COPYRIGHT: (C)2010,JPO&INPIT
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