Title:
IMPROVED 7XXX ALUMINUM ALLOYS
Document Type and Number:
WIPO Patent Application WO/2020/102441
Kind Code:
A3
Abstract:
New 7xxx aluminum alloys are disclosed. The new 7xxx aluminum alloys generally include from 0.05 to 1.0 wt. % Ag. In one approach, a new 7xxx aluminum alloy includes from 0.05 to 1.0 wt. % Ag, from 5.5 to 9.0 wt. % Zn, from 1.2 to 2.6 wt. % Cu, from 1.3 to 2.5 wt. % Mg, up to 0.60 wt. % Mn, up to 1.0 wt. % of at least one grain structure control material, wherein the at least one grain structure control material is selected from the group consisting of Zr, Cr, V, Hf, other rare earth elements, and combinations thereof, up to 0.30 wt. % Fe, up to 0.30 wt. % Si, up to 0.15 wt. % Ti, not greater than 0.08 wt. % Sc, and not greater than 0.05 wt. % Li, the balance being aluminum, optional incidental elements and impurities.
Inventors:
CAMBIER SEVERINE (US)
BOSELLI JULIEN (US)
LIN JEN C (US)
KARABIN LYNETTE M (US)
BOVARD FRANCINE S (US)
ZHANG WENPING (US)
BOSELLI JULIEN (US)
LIN JEN C (US)
KARABIN LYNETTE M (US)
BOVARD FRANCINE S (US)
ZHANG WENPING (US)
Application Number:
PCT/US2019/061305
Publication Date:
August 20, 2020
Filing Date:
November 13, 2019
Export Citation:
Assignee:
ARCONIC INC (US)
International Classes:
C22F1/053; C22C21/10
Domestic Patent References:
| WO2009036953A1 | 2009-03-26 |
Foreign References:
| US20160122852A1 | 2016-05-05 | |||
| US20080173377A1 | 2008-07-24 | |||
| US20170121802A1 | 2017-05-04 | |||
| US20140251511A1 | 2014-09-11 |
Attorney, Agent or Firm:
BRIGGS, Heath J. et al. (US)
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