Accession Number:

ADP005932

Title:

Superplastic Performance and Properties of the Lital Alloys,

Descriptive Note:

Corporate Author:

SUPERFORM METALS LTD WORCESTER (UNITED KINGDOM)

Personal Author(s):

Report Date:

1989-08-01

Pagination or Media Count:

7.0

Abstract:

The requirements in a superplastic sheet material are either to possess a fine uniform grain size or to be capable of developing such a grain structure during the course of superplastic deformation. The Lital Alloys processed by the optimum route to produce superplastic grade sheet fall into the latter category. This paper is devoted to describing the evolution, superplastic performance and properties of 8090 SPF produced by a commercial production route. The sheet produced by this processing route has good isotropic superplastic properties, the ability to be formed at the solution heat treatment temperature and low quench sensitivity. Properties determined on components formed with hydrostatic confining pressure are presented. The low flow stress of the material enables cavitation to be controlled during forming by this process. Keywords Alloys, Great Britain, Superplastic performance, Lital alloys, 8090 SPF, Metallurgy, Aluminum alloys. JG

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE