| 摘要 |
A castable aluminum alloy includes, in weight %, 0 to about 19% Si, 0 to about 5.0% Cu, 0 to about 1.5% Mg, up to about 3.0% Zn, up to about 2.0% Ni, up to about 0.3% Ti, greater than 0 to about 1.5 weight % Fe, about 0.2% to about 3.0% Mn, wherein a weight ratio of Mn/Fe is 0.6 or greater when Fe is less than 0.4 weight % and the weight ratio of Mn/Fe is 1.0 or greater when Fe is equal to or greater than 0.4 weight % to reduce porosity and increase tensile strength of a casting made from the alloy.
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