New technique for installing screen wicking into Inconel 718 heat pipe
- NASA Lewis Research Center, 21000 Brookpark Road, Cleveland, Ohio 44135 (United States)
- Sverdrup Technology, Inc., Lewis Research Center Group, 2001 Aerospace Parkway, Brook Park, Ohio 44142 (United States)
The creep behavior of superalloys, including Inconel 718, in the presence of liquid sodium is not yet known. To study this problem, the NASA Lewis Research Center has initiated a program with the Energy Technology Engineering Center (ETEC) of Rockwell International Corporation to fill with sodium and creep-test three small cylindrical heat pipes of Inconel 718 for a period of 1000 hours each. This report documents the design and the construction methods that were used at NASA Lewis to fabricate these heat pipes. Of particular importance in the heat pipe construction was the installation of the screen wicking by using an expandable mandrel and differential thermal expansion. This installation technique differs from anything known to have been reported in the heat pipe literature and may be of interest to other workers in the heat pipe field.
- OSTI ID:
- 5574855
- Report Number(s):
- CONF-930103-; CODEN: APCPCS
- Journal Information:
- AIP Conference Proceedings (American Institute of Physics); (United States), Vol. 271:1; Conference: 10. symposium on space nuclear power and propulsion, Albuquerque, NM (United States), 10-14 Jan 1993; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HEAT PIPES
HEAT PIPE WICKS
CREEP
FABRICATION
INCONEL 718
LIQUID METALS
SODIUM
THERMAL EXPANSION
ALKALI METALS
ALLOY-NI53CR19FE19NB5MO3
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
ELEMENTS
EXPANSION
FLUIDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL ALLOYS
IRON ALLOYS
LIQUIDS
MATERIALS
MECHANICAL PROPERTIES
METALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM A
420200* - Engineering- Facilities
Equipment
& Techniques