LMR cladding and duct materials development
Conference
·
OSTI ID:6583146
The alloys used for cladding and ducts for Liquid Metal Reactors (LMR) have undergone a dramatic change in the past few years. All LMR core components were originally fabricated from austenitic stainless steels primarily because of high temperature strength and good corrosion resistance. Operation of the various LMRs brought forth several problems with these steels, the most notable being dimensional instability produced by internal void formation. Efforts to mitigate this problem centered on compositional modifications and different thermomechanical treatments. Recently, a number of LMR programs have placed a major emphasis on ferritic/martensitic stainless steels. Studies have shown that these steels with the body centered cubic structure are more resistant to swelling than those of the face centered cubic lattice. Steels in the 9 to 12% chromium range are now being used in the tempered condition. High exposures have been obtained without measurable swelling. Future core materials research is directed towards improving the high temperature strength of this class of materials. The most promising approach is that of using a fine dispersion of an inert oxide.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 6583146
- Report Number(s):
- HEDL-SA-3477-FP; CONF-860931-20; ON: DE87009508
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500* -- Power Reactors
Breeding
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360106 -- Metals & Alloys-- Radiation Effects
ALLOYS
AUSTENITIC STEELS
BCC LATTICES
BREEDER REACTORS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DATA
EPITHERMAL REACTORS
EXPERIMENTAL DATA
FAST REACTORS
FBR TYPE REACTORS
FERRITIC STEELS
FUEL CANS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATERIALS
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTOR COMPONENTS
REACTOR CORES
REACTOR MATERIALS
REACTORS
RESEARCH PROGRAMS
STEELS
210500* -- Power Reactors
Breeding
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360106 -- Metals & Alloys-- Radiation Effects
ALLOYS
AUSTENITIC STEELS
BCC LATTICES
BREEDER REACTORS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DATA
EPITHERMAL REACTORS
EXPERIMENTAL DATA
FAST REACTORS
FBR TYPE REACTORS
FERRITIC STEELS
FUEL CANS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATERIALS
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTOR COMPONENTS
REACTOR CORES
REACTOR MATERIALS
REACTORS
RESEARCH PROGRAMS
STEELS