Advanced gas-cooled nuclear reactor materials evaluation and development program: corrosion behavior of experimental alloys in controlled-purity helium at temperatures in the 750 to 1050/sup 0/C range. [Ni-20Cr + Al, Ti, Si, Nb and/or Y]
A series of 10 experimental alloys (basically Ni-20Cr with addition of one or more of the elements Al, Ti, Si, Nb and Y) has been examined after exposure to controlled purity helium for periods of 1000 to 6000 hours at temperatures of 750 to 1050/sup 0/C. Alloys containing aluminum were particularly susceptible to internal oxidation at the lower temperatures, but at 950/sup 0/C and above carburization became the dominant corrosive mechanism. The most corrosive resistant alloys were Ni-Cr20 and Ni-Cr containing Si, Ti and Nb. The presence of small amounts of yttrium dramatically promoted the occurrence of carburization, even at temperatures as low as 850/sup 0/C. 69 figures, 7 tables.
- Research Organization:
- General Electric Co., Schenectady, NY (USA). Corporate Research and Development Dept.
- DOE Contract Number:
- AC02-76ET34202
- OSTI ID:
- 6774585
- Report Number(s):
- DOE/ET/34202-70; ON: DE83001331
- Country of Publication:
- United States
- Language:
- English
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Advanced gas cooled nuclear reactor materials evaluation and development program. Progress report, April 1, 1982-June 30, 1982
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Fri Oct 01 00:00:00 EDT 1982
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OSTI ID:6774585
Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development Program. Progress report, July 1, 1981-September 30, 1981
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Fri Feb 05 00:00:00 EST 1982
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OSTI ID:6774585
Related Subjects
36 MATERIALS SCIENCE
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
ALUMINIUM ALLOYS
CORROSION RESISTANCE
CHROMIUM ALLOYS
HTGR TYPE REACTORS
MATERIALS TESTING
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
SILICON ALLOYS
TITANIUM ALLOYS
CARBURIZATION
EXPERIMENTAL DATA
HELIUM
IMPURITIES
MICROSTRUCTURE
OXIDATION
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
VERY HIGH TEMPERATURE
YTTRIUM ADDITIONS
ALLOYS
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DATA
ELEMENTS
FLUIDS
GAS COOLED REACTORS
GASES
GRAPHITE MODERATED REACTORS
HARDENING
INFORMATION
NICKEL ALLOYS
NONMETALS
NUMERICAL DATA
RARE GASES
REACTORS
SURFACE HARDENING
SURFACE TREATMENTS
TESTING
YTTRIUM ALLOYS
360105* - Metals & Alloys- Corrosion & Erosion
210300 - Power Reactors
Nonbreeding
Graphite Moderated
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
ALUMINIUM ALLOYS
CORROSION RESISTANCE
CHROMIUM ALLOYS
HTGR TYPE REACTORS
MATERIALS TESTING
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
SILICON ALLOYS
TITANIUM ALLOYS
CARBURIZATION
EXPERIMENTAL DATA
HELIUM
IMPURITIES
MICROSTRUCTURE
OXIDATION
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
VERY HIGH TEMPERATURE
YTTRIUM ADDITIONS
ALLOYS
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DATA
ELEMENTS
FLUIDS
GAS COOLED REACTORS
GASES
GRAPHITE MODERATED REACTORS
HARDENING
INFORMATION
NICKEL ALLOYS
NONMETALS
NUMERICAL DATA
RARE GASES
REACTORS
SURFACE HARDENING
SURFACE TREATMENTS
TESTING
YTTRIUM ALLOYS
360105* - Metals & Alloys- Corrosion & Erosion
210300 - Power Reactors
Nonbreeding
Graphite Moderated