High-strength 6XXX aluminum alloys and methods of making the same

US10538834B2 · kind B2 · utility

Assignee

• Novelis Inc. · US

Inventors

• Wei-Chih Wen · Hsinchu, TW
• Hany Mohamed Abd El-Lateef Ahmed · Hofuf, SA
• Rajeev G. Kamat · Marietta, US
• Corrado Bassi · Salgesch, CH
• Guillaume Florey · Chandolin, CH
• Cyrille Bezencon · Chermignon, CH
• Juergen Timm · Steißlingen, DE
• David Leyvraz · Sierre, CH
• Aude Despois · Grône, CH
• Sazol Kumar Das · Acworth, US

Key dates

• Filing date: Dec 16, 2016
• Grant date: Jan 21, 2020
• Expiry date: Oct 15, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22F1/05
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed are high-strength aluminum alloys and methods of making and processing such alloys. More particularly, disclosed is a 6XXX series aluminum alloy exhibiting improved mechanical strength, formability, corrosion resistance, and anodized qualities. An exemplary method includes homogenizing, hot rolling, solutionizing, and quenching. In some cases, the processing steps can further include annealing and/or cold rolling.