High-forming multi-layer aluminum alloy package

US10689041B2 · kind B2 · utility

Assignee

• Novelis Inc. · US

Inventors

• Guillaume Florey · Chandolin, CH
• Cyrille Bezencon · Chermignon, CH
• Corrado Bassi · Salgesch, CH
• Juergen Timm · Steißlingen, DE
• Jean-Francois Despois · Sierre, CH
• Jacques Stadlin · Pont de la Morge, CH

Key dates

• Filing date: Oct 7, 2016
• Grant date: Jun 23, 2020
• Expiry date: Oct 7, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22F1/047
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Provided herein are novel, high-forming multi-layer aluminum alloy packages that include a core layer and one or more cladding layers. The alloy packages have excellent bake-hardening properties and are highly recyclable. The packages also display exceptional bendability and elongation properties. Also provided herein are novel aluminum alloy compositions for use as cladding layers. The compositions contain up to 0.6 wt. % Fe and one or more of Mn, Ni, Ti, Co, Nb, Cr, V, Zr, Hf and Ta.