Helium generation rates in isotopically tailored Fe-Cr-Ni alloys irradiated in FFTF/MOTA
- Pacific Northwest Lab., Richland, WA (United States)
- Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.
Three Fe-Cr-Ni alloys have been doped with 0.4% {sup 59}Ni for side-by-side irradiations of doped and undoped materials in order to determine the effects of fusion-relevant levels of helium production on microstructural development and mechanical properties. The alloys were irradiated in three successive cycles of the Materials Open Test Assembly (MOTA) located in the Fast Flux Test Facility (FFTF). Following irradiation, helium levels were measured by isotope dilution mass spectrometry. The highest level of helium achieved in doped alloys was 172 appm at 9.1 dpa for a helium(appm)-to-dpa ratio of 18.9. The overall pattern of predicted helium generation rates in doped and undoped alloys is in good agreement with the helium measurements.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5955958
- Report Number(s):
- PNL-SA-19318; CONF-911111-20; ON: DE92006421
- Resource Relation:
- Conference: International conference on fusion reactor materials, Clearwater, FL (United States), 17-22 Nov 1991
- Country of Publication:
- United States
- Language:
- English
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Isotopic tailoring with {sup 59}Ni to study the effect of helium on microstructural evolution and mechanical properties of neutron-irradiated Fe-Cr-Ni alloys
Isotopic tailoring with sup 59 Ni to study the effect of helium on microstructural evolution and mechanical properties of neutron-irradiated Fe-Cr-Ni alloys
Related Subjects
Ma
36 MATERIALS SCIENCE
IRON BASE ALLOYS
INTERSTITIAL HELIUM GENERATION
THERMONUCLEAR REACTOR MATERIALS
PHYSICAL RADIATION EFFECTS
CHROMIUM ALLOYS
DISPLACEMENT RATES
MICROSTRUCTURE
NEUTRON REACTIONS
NICKEL 59
NICKEL ALLOYS
ALLOYS
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
CRYSTAL STRUCTURE
ELECTRON CAPTURE RADIOISOTOPES
EVEN-ODD NUCLEI
HADRON REACTIONS
INTERMEDIATE MASS NUCLEI
IRON ALLOYS
ISOTOPES
MATERIALS
NICKEL ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
RADIATION EFFECTS
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
700480* - Fusion Technology- Component Development
Materials Studies- (1992-)
360106 - Metals & Alloys- Radiation Effects