ALUMINUM CASTING ALLOYS HAVING MANGANESE, ZINC AND ZIRCONIUM

摘要

Improved aluminum casting alloys having are disclosed. The new aluminum casting alloys generally include manganese, zinc, and zirconium. In this regard, the new aluminum casting alloys generally include from 2.0 to 5.0 wt. % Mn, 1.0-4.5 wt. % Zn, and from 0.05 to 0.9 wt. % Zr, the balance being aluminum, optional secondary elements, iron and silicon impurities, and other elements, where the new aluminum casting alloy includes not greater than 0.15 wt. % each of the other elements, and where the new aluminum casting alloy included not greater than 0.50 wt. % in total of the other elements.

主权项

1. An aluminum casting alloy consisting of:
2.0-5.0 wt. % Mn; 1.0-4.5 wt. % Zn; 0.25-1.5 wt. % Mg; 0.05-0.9 wt. % Zr; up to 2.5 wt. % Ce; up to 0.75 wt. % Co; not greater than 0.80 wt. % Fe; not greater than 0.50 wt. % Si; not greater than 0.40 wt. % Cu; not greater than 0.25 wt. % Cr; not greater than 0.25 wt. % Ni; and the balance being aluminum, optional secondary elements, and other elements, wherein the new aluminum casting alloy includes not greater than 0.15 wt. % each of the other elements, and wherein the new aluminum casting alloy included not greater than 0.50 wt. % in total of the other elements.