Aluminum-magnesium-zinc aluminum alloys

US12123078B2 · kind B2 · utility

Assignee

• Howmet Aerospace Inc. · US

Inventors

• Jen C. Lin · Export, US
• Wei-Chih Wen · Hsinchu, TW
• Santosh Prasad · Murrysville, US
• Mark D. Crowley · Pittsburgh, US
• Gabriele F. Ciccola · Hudson, US
• Matthew Brest · Hudson, US

Key dates

• Filing date: Aug 12, 2021
• Grant date: Oct 22, 2024
• Expiry date: Mar 29, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22F2003/242
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

New aluminum alloys having magnesium and zinc are disclosed. The new magnesium-zinc aluminum alloys may include from 2.5 to 4.0 wt. % Mg, from 2.25 to 4.0 wt. % Zn, wherein (wt. % Mg/wt. % Zn)≥1.0, and wherein (wt. % Mg/wt. % Zn)≤1.6, from 0.20 to 0.9 wt. % Mn, from 0.10 to 0.40 wt. % Cu, up to 1.0 wt. % Li, up to 0.50 wt. % Fe, up to 0.50 wt. % Si, and optional secondary element(s), the balance being aluminum, optional incidental elements and impurities.