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Interim Report on the Aluminum Powder Metallurgy Product Development Program

Technical Report ·
DOI:https://doi.org/10.2172/4181381· OSTI ID:4181381
 [1]
  1. North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.
Because of their good elevated temperature strength properties, aluminum powder metallurgy (APM) products have application in organic cooled reactors. Tensile and creep investigations have confirmed the superiority of APM alloys over conventional, wrought aluminum alloys, in the temperature range of 800 to 1000 °F. However, the resultant strength values are significantly lower than previously reported. Cold working may also lower the elevated temperature strength of APM alloys. Alloy M257 has been successfully extruded into externally-finned, thin-walled, small-diameter tubing. End closures in M257 tubes have been successfully made by fusion welding unalloyed aluminum end plugs and by flash welding M257 end plugs. After prolonged heating at 1100 °F, no evidence of a reaction between UO2 pellets and M257 has been found. APM products are compatible with organic coolants at 750 °F.
Research Organization:
North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.
Sponsoring Organization:
US Atomic Energy Commission (AEC)
DOE Contract Number:
AT(11-1)-GEN-8
NSA Number:
NSA-14-006612
OSTI ID:
4181381
Report Number(s):
NAA-SR--4233
Country of Publication:
United States
Language:
English

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