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Proceedings Paper

Cryogenic properties of aluminum-beryllium and beryllium materials
Author(s): Wayne R Gamwell; Preston B. McGill
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Paper Abstract

Ultimate tensile strength, yield strength, and elongation were obtained for the aluminum-beryllium alloy, AlBeMet162 (38%Al-62%Be), at cryogenic [(-195.5°C (-320°F) and (-252.8°C) (-423°F)] temperatures, and for an optical grade beryllium, O-30H (99%Be), at -252.8°C. AlBeMet162 material was purchased to the requirements of SAE-AMS7912, "Aluminum-Beryllium Alloy, Extrusions." O-30H material was purchased to the requirements of Brush Wellman Inc. specification O-30H Optical Grade Beryllium. The ultimate tensile and yield strengths for extruded AlBeMet162 material increased with decreasing temperature, and the percent elongation decreased with decreasing temperature. Design properties for the ultimate tensile strength, yield strength, and percent elongation for extruded AlBeMet162 were generated. It was not possible to distinguish a difference in the room and cryogenic ultimate strength for the hot isostatically pressed (HIP'ed) O-30H material. The O30H elongation decreased with decreasing temperature.

Paper Details

Date Published: 12 December 2003
PDF: 12 pages
Proc. SPIE 5179, Optical Materials and Structures Technologies, (12 December 2003); doi: 10.1117/12.504397
Show Author Affiliations
Wayne R Gamwell, NASA Marshall Space Flight Ctr. (United States)
Preston B. McGill, NASA Marshall Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 5179:
Optical Materials and Structures Technologies
William A. Goodman, Editor(s)

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