Replacement of environmentally hazardous corrosion protection paints on the space shuttle main engine using wire arc sprayed aluminum
- Rockwell International, Huntsville, AL (United States)
- National Aeronautics and Space Administration, Huntsville, AL (United States)
With the advent of new environmental laws restricting hazardous emissions, environmentally safe thermal spray coatings are being developed to replace the traditional corrosion protection chromate primers. A wire arc sprayed aluminum coating is being developed for corrosion protection of low pressure liquid hydrogen carrying ducts on the Space Shuttle Main Engine. Currently, this hardware utilizes a chromate primer to provide protection against pitting corrosion leading to stress corrosion cracking induced by the cryogenic operating environment. Coating development, adhesion test, corrosion test, cryogenic flexibility and thermal cycle test results will be presented. Wire arc sprayed aluminum is proving to provide corrosion protection in cryogenic aerospace applications.
- OSTI ID:
- 160434
- Report Number(s):
- CONF-940684-; ISBN 0-87170-509-5; TRN: IM9603%%16
- Resource Relation:
- Conference: 1994 national thermal spray conference, Boston, MA (United States), 20-24 Jun 1994; Other Information: PBD: 1994; Related Information: Is Part Of 1994 Thermal spray industrial applications: Proceedings; Berndt, C.C.; Sampath, S. [eds.] [State Univ. of New York, Stony Brook, NY (United States). Dept. of Materials Science and Engineering]; PB: 816 p.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ALUMINIUM
SPRAY COATING
ADHESION
CORROSION RESISTANCE
MECHANICAL PROPERTIES
SPACE SHUTTLES
FUEL SYSTEMS
CHROMIUM-NICKEL STEELS
HYDROGEN
PITTING CORROSION
CHROMATES
ENVIRONMENTAL QUALITY
WIRES
PROCESS CONTROL
FLEXIBILITY
THERMAL CYCLING
CRYOGENICS
MICROSTRUCTURE