Type 304 stainless steel with 0. 5% boron for storage of spent nuclear fuel
Journal Article
·
· J. Met.; (United States)
- Cyclops Corp., Pittsburgh, PA
For many years, Type 304 stainless steel with 1 to 2 wt. % boron has been used for control rods and thermal shielding of nuclear reactors, and for spent-fuel storage racks. There is current interest in Type 304 with 0.5 to 0.7% boron for the latter application; this paper presents a metallurgical evaluation at 0.53% boron. As measured by Gleeble hot tensile testing, strength of the alloy is no more than 25% higher than standard 304, but ductility is reduced over the 900 to 1180/sup 0/C range and hence would require special care in hot working. A uniform density and concentration of particles occur at grain boundaries which are 1 or 6 microns, and which analyze approx. 50% chromium via EDAX/SEM. From the electrochemical measurements, it is apparent that Type 304 with 0.53% boron is susceptible to intergranular attack. In non-sensitized specimens, the presence of boride particles may either accelerate intergranular corrosion or tend to suppress it, depending upon the environment.
- OSTI ID:
- 6654932
- Journal Information:
- J. Met.; (United States), Journal Name: J. Met.; (United States) Vol. 32:12; ISSN JOMTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
BORON ADDITIONS
BORON ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
FUEL POOLS
FUEL RACKS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
MICROSTRUCTURE
NICKEL ALLOYS
REACTOR MATERIALS
SPENT FUEL STORAGE
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
STORAGE
SUPPORTS
TENSILE PROPERTIES
220200* -- Nuclear Reactor Technology-- Components & Accessories
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
BORON ADDITIONS
BORON ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
FUEL POOLS
FUEL RACKS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
MICROSTRUCTURE
NICKEL ALLOYS
REACTOR MATERIALS
SPENT FUEL STORAGE
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
STORAGE
SUPPORTS
TENSILE PROPERTIES