Aluminum alloy for automobile wheels, and automobile wheel
AssigneeResonac Corporation
InventorTakumi MARUYAMA
Life of this patent
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Abstract
An aluminum alloy for automobile wheels which contains Si in a range of 8.0% to 11.5% by mass, Cu in a range of 0.7% to 1.2% by mass, Mg in a range of 0.2% to 0.6% by mass, Mn in a range of 0.30% to 0.60% by mass, Fe in a range of 0.10% to 0.30% by mass, Cr in a range of 0.01% to 0.03% by mass, and balance Al with inevitable impurities. The aluminum alloy does not contain, per 1182 μm2, two or more crystallized products containing 1% by mass or more of Cu and having a circle equivalent diameter exceeding 5 μm, does not contain, per 1182 μm2, two or more Cr-containing intermetallic compounds having a length of 8 μm or more, and does not contain, per 4726 μm2, two or more primary crystal Si particles having a circle equivalent diameter exceeding 10 μm.
Claims5
An aluminum alloy for automobile wheels containing Si in a range of 8.0% by mass or more and 11.5% by mass or less, Cu in a range of 0.7% by mass or more and 1.2% by mass or less, Mg in a range of 0.2% by mass or more and 0.6% by mass or less, Mn in a range of 0.30% by mass or more and 0.60% by mass or less, Fe in a range of 0.10% by mass or more and 0.30% by mass or less, Cr in a range of 0.01% by mass or more and 0.03% by mass or less, and balance Al with inevitable impurities, wherein
- the aluminum alloy does not contain, per 1182 μm2, two or more crystallized products containing 1% by mass or more of Cu and having a circle equivalent diameter exceeding 5 μm,
- the aluminum alloy does not contain, per 1182 μm2, two or more Cr-containing intermetallic compounds having a length of 8 μm or more, and
- the aluminum alloy does not contain, per 4726 μm2, two or more primary crystal Si particles having a circle equivalent diameter exceeding 10 μm.
Dependencies are inferred from the claim text.