Irradiation-induced swelling in commercial alloys. [Effects of Ni, Cr content]
Examination of a wide range of commercial alloys indicates that a minimum in swelling occurs at 40 to 50% nickel. Swelling in these alloys was measured after irradiation to peak fluences of 14.7 x 10/sup 22/ n/cm/sup 22/ (E > 0.1 MeV) at temperatures ranging from 400 to 650/sup 0/C. The minimum in swelling extends over the full range of irradiation test temperatures. Swelling in the alloys appears to be more sensitive to preirradiation aging treatments than to relative position on the Fe-Cr-Ni ternary diagram. Preirradiation aging of an alloy removes swelling inhibitors from the matrix with a consequent increase in swelling. One of the more important swelling inhibitors removed is carbon. Carbon in solution in the configuration of atomic complexes, which may contain both lattice defects and carbon atoms, can reduce swelling by screening of the dislocation stress fields and hence cause a reduction in the dislocation-interstitial bias factor. A reduction in swelling with increasing equavilant chromium content was also observed. 16 figures, 4 tables.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC14-76FF02170
- OSTI ID:
- 6067991
- Report Number(s):
- HEDL-SA-2257-FP; ON: DE81029755; TRN: 81-016090
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALLOY-A-286
PHYSICAL RADIATION EFFECTS
CHROMIUM ALLOYS
INCOLOY ALLOYS
INCONEL ALLOYS
IRON ALLOYS
NICKEL ALLOYS
NIMONIC
STAINLESS STEELS
AGING
FAST NEUTRONS
NEUTRON BEAMS
QUANTITY RATIO
SWELLING
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BARYONS
BEAMS
CORROSION RESISTANT ALLOYS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON BASE ALLOYS
MATERIALS
MOLYBDENUM ALLOYS
NEUTRONS
NICKEL BASE ALLOYS
NUCLEON BEAMS
NUCLEONS
PARTICLE BEAMS
RADIATION EFFECTS
STEELS
TITANIUM ALLOYS
360106* - Metals & Alloys- Radiation Effects