The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2017
Filed:
Mar. 12, 2014
Applicant:
Alcoa Usa Corp., Pittsburgh, PA (US);
Inventors:
Xinyan Yan, Murrysville, PA (US);
Wenping Zhang, Murrysville, PA (US);
Dana Clark, Apollo, PA (US);
James Daniel Bryant, Murrysville, PA (US);
Jen Lin, Export, PA (US);
Assignee:
ALCOA USA CORP., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F 1/053 (2006.01); C22C 21/10 (2006.01); C22F 1/00 (2006.01);
U.S. Cl.
CPC ...
C22F 1/053 (2013.01); C22C 21/10 (2013.01); C22F 1/002 (2013.01);
Abstract
New methods for aging aluminum alloys having zinc and magnesium are disclosed. The methods may include first aging the aluminum alloy at a first temperature of from about 310° F. to 530° F. and for a first aging time of from 1 minute to 6 hours, and then second aging the aluminum alloy at a second temperature for a second aging time of at least 30 minutes, with the second temperature being lower than the first temperature.