High performance AlSiMgCu casting alloy

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United States of America Patent

PATENT NO 10174409
APP PUB NO 20130105045A1
SERIAL NO

13662132

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Abstract

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An aluminum casting alloy has 8.5-9.5 wt. % silicon, 0.5-2.0 wt. % copper (Cu), 0.27-0.53 wt. % magnesium (Mg), wherein the aluminum casting alloy includes copper and magnesium such that 4.7≤(Cu+10Mg)≤5.8, and other elements, the balance being aluminum. Selected elements may be added to the base composition to give resistance to degradation of tensile properties due to exposure to heat. The thermal treatment of the alloy is calculated based upon wt. % composition to solutionize unwanted phases having a negative impact on properties and may include a three level ramp-up and soak to a final temperature followed by cold water quenching and artificial aging.

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Patent Owner(s)

Patent OwnerAddress
ALCOA USA CORP201 ISABELLA STREET PITTSBURGH PA 15212-5858

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Jen C Export, US 80 773
Yan, Xinyan Murrysville, US 45 480

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