Oxygen Embrittlement for Zircaloy Cladding
نویسندگان
چکیده
منابع مشابه
Modelling of Zircaloy cladding primary creep during load drop and reversal
Modelling fuel behaviour requires an accurate description of the cladding stress response for both operational and safety considerations. The transient creep response of Zirconium alloys is commonly modelled using a strain hardening rule which is known to hold in cases with monotonously increasing stresses. However, the strain hardening rule is experimentally known to fail in scenarios such as ...
متن کاملModeling of Zircaloy cladding primary creep during load drop and reversal
Modeling fuel behavior requires an accurate description of the cladding stress response for both operational and safety considerations. The transient creep response of Zirconium alloys is commonly modeled using a strain hardening rule which is known to hold in cases with monotonously increasing stresses. However, the strain hardening rule is experimentally known to fail in scenarios such as loa...
متن کاملSEM and EPMA analysis of un-usual hydride structure in in-pile cracked Zircaloy-cladding
The hydride distribution in a cracked Zircaloy cladding tube has been investigated by neutron radiography, Scanning Electron Microscopy (SEM) and Hydrogen measurements. The crack occurred during handling in the spent fuel pool. Back Scattered Electron images showed some unexpected contrasts in zones with high hydrogen concentrations near cracks. This phase has been studied by SEM and EPMA. Afte...
متن کاملComparison of Pellet-Cladding Mechanical Interaction for Zircaloy and Silicon Carbide Clad Fuel Rods in Pressurized Water Reactors
Contact between the outer surface of a fuel pellet and the inner surface of the fuel rod cladding can result in several kinds of undesirable behavior. As the pellet swells outward and the cladding creeps down, large stresses are generated in both the pellet and the cladding. This contact may exacerbate chemical degradation of the cladding and the stress may enable rapid propagation of cracks. B...
متن کاملUse of Secondary Ions Mass Spectrometry (SIMS) for Cladding Materials Post- Irradiation Examination (PIE)
Zirconium-based alloys are widely used in the field of nuclear industry as cladding for nuclear fuel in power plants. In a pressurized water reactor (PWR), boric acid is added in the coolant for reactivity control. Lithium hydroxide is added to render the coolant slightly alkaline, which helps to inhibit corrosion product deposition on the fuel cladding and reduces the corrosion rate of structu...
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ژورنال
عنوان ژورنال: Journal of Nuclear Science and Technology
سال: 1978
ISSN: 1881-1248,0022-3131
DOI: 10.3327/jnst.15.152