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RESEARCH PAPERS

Temperature Dependences of the Elastic Constants of Precipitation-Hardened Aluminum Alloys 2014 and 2219

[+] Author and Article Information
D. T. Read, H. M. Ledbetter

Cryogenics Division, Institute for Basic Standards, National Bureau of Standards, Boulder, Colo.

J. Eng. Mater. Technol 99(2), 181-184 (Apr 01, 1977) (4 pages) doi:10.1115/1.3443429 History: Received May 27, 1976; Online August 17, 2010

Abstract

Elastic properties of precipitation-hardened aluminum alloys 2014 and 2219 were studied between 4 and 300 K using ultrasonic pulse techniques. Both the longitudinal and transverse sound velocities were measured. Also reported are the Young’s modulus, shear modulus, bulk modulus, and Poisson’s ratio. For both alloys, the Young’s moduli are about ten percent higher than for unalloyed aluminum, and they increase about ten percent on cooling from 300 to 4 K. All the elastic constants show normal temperature dependence.

Copyright © 1977 by ASME
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