Mechanical properties of types 304 and 316 stainless steel after long-term aging and exposure
Because designs for Liquid Metal Fast Breeder Reactor (LMFBR) power plants include plant lifetimes to 40 years, an understanding of the mechanical behavior of the structural alloys used is required for times of approx. 2 to 2.5 x 10/sup 5/ h. Most of the alloys used for LMFBR out-of-core structures and components are in a metastable state at the beginning of plant lifetime and evolve to a more stable state and, therefore, microstructure during plant operation. We reviewed mechanical properties and microstructures after prolonged elevated-temperature exposure of types 304 and 316 stainless steel, two alloys used extensively in fast breeder systems. Aging alters properties; in particular, it decreases toughness and tensile ductility, but the properties are still adequate for service. Because stable microstructures have been reached in long-term exposures achieved so far, properties can be expected to remain adequate for service life exposures.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5435563
- Report Number(s):
- CONF-8310198-3; ON: DE84003325
- Resource Relation:
- Conference: IAEA specialists on mechanical properties of structural materials, Chester, UK, 10 Oct 1983; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Review of effects of long-term aging on the mechanical properties and microstructures of Types 304 and 316 stainless steel
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
STAINLESS STEEL-304
AGING
MECHANICAL PROPERTIES
STAINLESS STEEL-316
CREEP
ELECTRON MICROSCOPY
FRACTURE PROPERTIES
HIGH TEMPERATURE
IMPACT STRENGTH
LMFBR TYPE REACTORS
MICROSTRUCTURE
REACTOR MATERIALS
RUPTURES
TENSILE PROPERTIES
ALLOYS
BREEDER REACTORS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
EPITHERMAL REACTORS
FAILURES
FAST REACTORS
FBR TYPE REACTORS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
LIQUID METAL COOLED REACTORS
MATERIALS
MICROSCOPY
MOLYBDENUM ALLOYS
NICKEL ALLOYS
REACTORS
STAINLESS STEELS
STEELS
360103* - Metals & Alloys- Mechanical Properties
210500 - Power Reactors
Breeding