Carbon transport in a bimetallic sodium loop simulating the intermediate heat transport system of a liquid metal fast breeder reactor

Conference · Tue Apr 01 00:00:00 EST 1980

OSTI ID:5553572

Hampton, L V; Spalaris, C N; Roy, P

Carbon transport data from a bimetallic sodium loop simulating the intermediate heat transport system of a Liquid Metal Fast Breeder Reactor are discussed. The results of bulk carbon analyses after 15,000 hours' exposure indicate a pattern of carburization of Type 304 stainless steel foils which is independent of loop sodium temperature. A model based on carbon activity gradients accounting for this behavior is proposed. Data also indicate that carburization of Type 304 stainless steel is a diffusion-controlled process; however, decarburization of the ferritic 2 1/4 Cr-1Mo steel is not. It is proposed that the decarburization of the ferritic steel is controlled by the dissolution of carbides in the steel matrix. The differences in the sodium decarburization behavior of electroslag remelted and vacuum-arc remelted 2 1/4 Cr-1Mo steel are also highlighted.

• Research Organization: General Electric Co., Sunnyvale, CA (USA). Advanced Reactor Systems Dept.
• DOE Contract Number: EY-76-C-03-0893-031
• OSTI ID: 5553572
• Report Number(s): GEFR-SP-172; CONF-800401-7; TRN: 80-007917
• Resource Relation: Conference: 2. international conference of liquid metal technology for energy systems, Richland, WA, USA, 20 Apr 1980
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
36 MATERIALS SCIENCE
CHROMIUM-MOLYBDENUM STEELS
DECARBURIZATION
LMFBR TYPE REACTORS
PRIMARY COOLANT CIRCUITS
PIPES
STAINLESS STEEL-304
CARBON
MOCKUP
PERFORMANCE TESTING
TEST FACILITIES
ALLOYS
BREEDER REACTORS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COOLING SYSTEMS
CORROSION RESISTANT ALLOYS
ELEMENTS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
LIQUID METAL COOLED REACTORS
MATERIALS
NICKEL ALLOYS
NONMETALS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
STAINLESS STEELS
STEELS
STRUCTURAL MODELS
TESTING
210500* - Power Reactors
Breeding
360105 - Metals & Alloys- Corrosion & Erosion