Accession Number:

ADA171224

Title:

Investigation of the Elastic Behavior of Al-Li-X Alloys.

Descriptive Note:

Annual letter rept. 1 Jun 85-31 May 86,

Corporate Author:

VIRGINIA UNIV CHARLOTTESVILLE DEPT OF MATERIALS SCIENCE

Personal Author(s):

• Ruch, Wolfgang
• Starke, E. A., Jr

Report Date:

1986-06-27

Pagination or Media Count:

5.0

Abstract:

The goal of this research is to identify and understand critical parameters governing the elastic moduli of commercially important Al-Li-X alloys X designates copper, magnesium or both. The basic knowledge gained during the project can be used toward further development aluminum-lithium alloys in terms of optimized stiffness. The Youngs modulus, shear modulus and Poissons ratio are calculated from the density and the propagation rate of longitudinal and transverse 10 MHz ultrasonic waves.

Descriptors:

• *ALUMINUM ALLOYS
• *LITHIUM ALLOYS
• ELASTIC PROPERTIES
• MODULUS OF ELASTICITY
• COPPER ALLOYS
• MAGNESIUM ALLOYS

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE