Method for fabricating wrought components for high-temperature gas-cooled reactors and product

Patent · Tue Jul 23 04:00:00 EDT 1985

OSTI ID:6496981

Thompson, L D; Johnson, Jr, W R

A method and alloys for fabricating wrought components of a high-temperature gas-cooled reactor are disclosed. These wrought, nickel-based alloys, which exhibit strength and excellent resistance to carburization at elevated temperatures, include aluminum and titanium in amounts and ratios to promote the growth of carburization resistant films while preserving the wrought character of the alloys. These alloys also include substantial amounts of molybdenum and/or tungsten as solid-solution strengtheners. Chromium may be included in concentrations less than 10% to assist in fabrication. Minor amounts of carbon and one or more carbide-forming metals also contribute to high-temperature strength.

• Assignee: Dept. of Energy
• Patent Number(s): US 4530727
• OSTI ID: 6496981
• Country of Publication: United States
• Language: English

Related Subjects

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ALLOYS
ALUMINIUM ALLOYS
CARBON COMPOUNDS
CARBURIZATION
CHEMICAL COMPOSITION
CHROMIUM ALLOYS
FABRICATION
GAS COOLED REACTORS
GCR TYPE REACTORS
GRAPHITE MODERATED REACTORS
HARDENING
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
QUANTITY RATIO
REACTOR COMPONENTS
REACTORS
SURFACE HARDENING
SURFACE PROPERTIES
SURFACE TREATMENTS
TEMPERATURE EFFECTS
TITANIUM ALLOYS
TUNGSTEN ALLOYS