SYMPOSIA PAPER Published: 01 January 1975

Low Temperature Elastic Properties of Aluminum 5083-0 and Four Ferritic Nickel Steels


The low-temperature elastic properties have been determined for five commercial alloys that have possible structural applications at cryogenic temperatures. The alloys are 5083-0 aluminum and four ferritic steels: 3.5, 5, 6, and 9 percent nickel. An ultrasonic (10 MHz) pulse-superposition method was used to measure longitudinal and transverse wave velocities. Using the velocities and the mass density as input, the following elastic constants were calculated: longitudinal modulus, Young's (tensile) modulus, shear (rigidity) modulus, bulk modulus (reciprocal compressibility), and Poisson's ratio. Measurements were made semicontinuously from 300 to 4K. The room-temperature composition dependence of iron-nickel alloys is reviewed comprehensively up to 12 percent nickel. Debye temperatures were calculated from the elastic constants. A discussion is given of the temperature dependences of the elastic constants and differential relationships among the elastic constants.

Author Information

Weston, WF
Institute for Basic Standards, National Bureau of Standards, Boulder, Colo.
Naimon, ER
National Research Council/National Bureau of Standards Postdoctoral Research Associates, Golden, Colo.
Ledbetter, HM
Institute for Basic Standards, National Bureau of Standards, Boulder, Colo.
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Developed by Committee: E50
Pages: 397–420
DOI: 10.1520/STP29171S
ISBN-EB: 978-0-8031-4659-4
ISBN-13: 978-0-8031-0538-6