Al-Si-Fe-BASED ALUMINUM ALLOY CASTING MATERIAL AND METHOD FOR PRODUCING THE SAME
AssigneeNippon Light Metal Company, Ltd.
InventorsSatoru SUZUKI, Kazuhiro ODA, Katsumi FUKAYA
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Abstract
An Al—Si—Fe-based aluminum alloy casting material that is excellent in elongation while having characteristics of high rigidity and a method for producing the same are provided. The Al—Si—Fe-based aluminum alloy casting material has a composition that includes: Si, a content of which is 12.0% by mass or more and 25.0% by mass or less; Fe, a content of which is 0.48% by mass or more and 4.0% by mass or less; Cr, a content of which is 0.17% by mass or more and 5.0% by mass or less; and a remainder composed of Al and unavoidable impurities. The casting material includes a structure, in which a Si-based crystallized product surrounds an Al—Cr—Si-based compound.
Claims6
An Al—Si—Fe-based aluminum alloy casting material having a composition, the composition comprising:
- Si, a content of which is 12.0% by mass or more and 25.0% by mass or less;
- Fe, a content of which is 0.48% by mass or more and 4.0% by mass or less;
- Cr, a content of which is 0.17% by mass or more and 5.0% by mass or less;
- and
- a remainder composed of Al and unavoidable impurities, wherein
- the casting material includes a structure, in which a Si-based crystallized product surrounds an Al—Cr—Si-based compound.
A method for producing an Al—Si—Fe-based aluminum alloy casting material, the method comprising:
- casting at a cooling rate of 500° C./s or more an aluminum alloy having a composition including:
- Si, a content of which is 12.0% by mass or more and 25.0% by mass or less;
- Fe, a content of which is 0.48% by mass or more and 4.0% by mass or less;
- Cr, a content of which is 0.17% by mass or more and 5.0% by mass or less;
- and
- a remainder composed of Al and unavoidable impurities.
Dependencies are inferred from the claim text.