Accession Number:

ADD002373

Title:

Treatment of Aluminum Alloys.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s):

• Reimann,Walter H.
• Brisbane,Alton W.

Report Date:

1976-03-30

Pagination or Media Count:

4.0

Abstract:

The patent describes a process for treating 7000 series aluminum alloys whereby their stress-corrosion resistance is greatly increased. In accordance with the process, the alloy is pre-aged, deformed at room temperature, and then subjected to two aging steps. The alloy so treated has a high resistance to stress corrosion while retaining satisfactory strength properties.

Descriptors:

• *Heat treatment
• *Aluminum alloys
• *Patents
• Corrosion resistance
• Stress corrosion
• Deformation
• Aging(Materials)

Subject Categories:

• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE