公开(公告)号：US20140248176A1

公开(公告)日：2014-09-04

申请号：US14283024

申请日：2014-05-20

Applicant: ALCOA INC.

Inventor： Jen C. Lin ,  Ralph R. Sawtell ,  Gary H. Bray ,  Cindie Giummarra ,  Andre Wilson ,  Gregory B. Venema

IPC: C22C21/16

Abstract: New 2xxx aluminum alloys containing vanadium are disclosed. In one embodiment, the aluminum alloy includes 3.3-4.1 wt. % Cu, 0.7-1.3 wt. % Mg, 0.01-0.16 wt. % V, 0.05-0.6 wt. % Mn, 0.01 to 0.4 wt. % of at least one grain structure control element, the balance being aluminum, incidental elements and impurities. The new alloys may realize an improved combination of properties, such as in the T39 or T89 tempers.