Grain-boundary segregation in solution-treated Nimonic PE16 during neutron irradiation
Conference
·
OSTI ID:5277191
Solute segregation at grain boundaries has been examined in solution-treated Nimonic PE16 after irradiation in EBR-II to fluences of 6 and 10 x 10/sup 22/ n/cm/sup 2/ (E > 0.1 MeV) in the temperature range 425 to 650/sup 0/C. Energy-dispersive x-ray spectrometry shows grain boundary enrichment of Ni, Ti, Al, and Si and depletion of Fe and Cr in samples irradiated at temperatures above 510/sup 0/C. Electron microscope examinations further show that a continuous 30 nm thick layer of ..gamma..' forms at grain boundaries and at incoherent twin boundaries in samples irradiated at temperatures above 510/sup 0/C and that antiphase boundaries are clearly revealed in superlattice dark-field images of the ..gamma..'.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 5277191
- Report Number(s):
- HEDL-SA-2199; CONF-811145-5; ON: DE82005909
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500* -- Power Reactors
Breeding
36 MATERIALS SCIENCE
360106 -- Metals & Alloys-- Radiation Effects
ALLOYS
BORON ADDITIONS
BORON ALLOYS
BREEDER REACTORS
CARBON ADDITIONS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATERIALS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIMONIC
NIMONIC PE16
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTOR MATERIALS
REACTORS
TITANIUM ALLOYS
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS
210500* -- Power Reactors
Breeding
36 MATERIALS SCIENCE
360106 -- Metals & Alloys-- Radiation Effects
ALLOYS
BORON ADDITIONS
BORON ALLOYS
BREEDER REACTORS
CARBON ADDITIONS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATERIALS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIMONIC
NIMONIC PE16
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTOR MATERIALS
REACTORS
TITANIUM ALLOYS
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS