Design of a single variable helium effects experiment for irradiation in FFTF (Fast Flux Test Facility) using alloys enriched in nickel 59
Nickel enriched in nickel 59 was extracted from the fragments of a fracture toughness specimen of Inconel 600 irradiated in the Engineering Test Reactor (ETR). The nickel contained 2.0% nickel 59. Three heats of austenitic steel doped with nickel-59 were prepared and inserted in the Materials Open Test Assembly (MOTA) of the Fast Flux Test Facility (FFTF). The experiment was single variable in helium effects because chemically identical alloys without nickel-59 were being irradiated side by side with the doped material. The alloys doped with nickel 59 produced 10 to 100 times more helium than the control alloys. The materials included ternary and quaternary alloys in the form of transmission electron microscope (TEM) discs and miniature tensile specimens. The helium to dpa ratio was in the range 5 to 35 and was nearly constant throughout the irradiation. The exposures ranged from 0.25 to 50 displacements per atom (dpa) over the duration of the experiment. The irradiation temperatures covered the range of 360 to 600/sup 0/C.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 6481136
- Report Number(s):
- HEDL-SA-3418; CONF-860421-75; ON: DE87010412
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360106* -- Metals & Alloys-- Radiation Effects
654003 -- Radiation & Shielding Physics-- Neutron Interactions with Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALLOYS
AUSTENITIC STEELS
BETA DECAY RADIOISOTOPES
CHROMIUM ALLOYS
COMPARATIVE EVALUATIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EPITHERMAL REACTORS
EVEN-ODD NUCLEI
FAST REACTORS
FFTF REACTOR
FLUIDS
GASES
HELIUM
INCONEL 600
INCONEL ALLOYS
INTERMEDIATE MASS NUCLEI
IRON ALLOYS
IRON BASE ALLOYS
IRRADIATION
ISOTOPES
LIQUID METAL COOLED REACTORS
METALS
NEUTRON FLUX
NICKEL
NICKEL 59
NICKEL ALLOYS
NICKEL BASE ALLOYS
NICKEL ISOTOPES
NIOBIUM ALLOYS
NONMETALS
NUCLEI
RADIATION EFFECTS
RADIATION FLUX
RADIOISOTOPES
RARE GASES
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SODIUM COOLED REACTORS
STEELS
TEST REACTORS
TRANSITION ELEMENTS
YEARS LIVING RADIOISOTOPES