Accession Number:
ADP005935
Title:
Aluminum-Lithium: Application of Plate and Sheet to Fighter Aircraft,
Descriptive Note:
Corporate Author:
MCDONNELL CO ST LOUIS MO MATERIAL AND PROCESS DEVELOPMENT DEPT
Personal Author(s):
Report Date:
1989-08-01
Pagination or Media Count:
11.0
Abstract:
The potential for weight savings resulting from the low density and high stiffness of aluminium-lithium Al-Li alloys led McDonnell Aircraft Company to consider Al-Li alloys for use on both new and existing aircraft. The successful fabrication, and flight testing, of several demonstration parts on both the F-15 and FA-18 increased interest in these alloys. In support of these and other applications of Al-Li plate and sheet, the mechanical properties, conventional formability and superplastic formability of 2090 and 8090 were evaluated. With a few notable exceptions, such as the anisotropy in sheet, these Al-Li alloys were comparable to conventional aluminum alloys. Chemical processing and corrosion resistance of 2090 and 8090 were also investigated and again were found comparable to conventional aluminum. Keywords Alloys, Metallurgy, F-15 Aircraft, FA-18 Aircraft, Applications of Al-2i plate and sheet, MCAIR, Mechanical properties, Corrosion. JG
Descriptors:
Subject Categories:
- Properties of Metals and Alloys