High strength 5xxx aluminum alloys and methods of making the same
AssigneeNovelis Inc.
InventorsJyothi Kadali, Kevin Michael Gatenby, Daehoon Kang, Sazol Kumar Das
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Abstract
Described herein are novel aluminum-containing alloys. The alloys are highly formable, exhibit high strength and corrosion resistance, and are recyclable. The alloys can be used in electronics, transportation, industrial, and automotive applications, just to name a few. Also described herein are methods for producing metal ingots and products obtained by the methods.
Claims21
An aluminum alloy comprising about 0.05-0.30 wt. % Si, 0.08-0.50 wt. % Fe, 0-0.60 wt. % Cu, 0-0.60 wt. % Mn, 4.0-7.0 wt. % Mg, 0-0.25 wt. % Cr, 0-0.20 wt. % Zn, 0-0.15 wt. % Ti, and up to 0.15 wt. % of impurities, with the remainder as Al.
A method of producing a metal product, comprising:
- direct chill casting an aluminum alloy to form an ingot, wherein the aluminum alloy comprises about 0.05-0.30 wt. % Si, 0.08-0.50 wt. % Fe, 0-0.60 wt. % Cu, 0-0.6 wt. % Mn, 4.0-7.0 wt. % Mg, 0-0.25 wt. % Cr, 0-0.20 wt. % Zn, 0-0.15 wt. % Ti, up to 0.15 wt. % of impurities, with the remainder as Al;
- homogenizing the ingot to form a plurality of α-AlFeMnSi particles in the ingot;
- cooling the ingot to a temperature of 450° C. or less;
- hot rolling the ingot to produce a rolled product;
- allowing the rolled product to self-anneal;
- and
- cold rolling the rolled product to a final gauge.
Dependencies are inferred from the claim text.