Resistance of (Fe,Ni)/sub 3/V long-range-ordered alloys to radiation damage
The (Fe,Ni)/sub 3/V long-range-ordered (LRO) alloys (path D) are being developed at ORNL for possible application as a first-wall material for a fusion reactor. Alloys with different Fe/Ni ratios have been screened for their resistance to radiation by irradiating them with 4 MeV Ni ions to 70 dpa at temperatures from 525 to 680/sup 0/C. Helium (8 at. ppM/dpa) and deuterium ions (28 at. ppM/dpa) were simultaneously injected to better simulate fusion reactor conditions. Alloy LRO-16 (31 wt % Ni) contained sigma phase and showed swelling behavior similar to the 20%-cold-worked 316 stainless steel that was used as an internal standard. LRO-20 (39.5 wt % Ni), without sigma phase, swelled slightly less than the 316 stainless steel. Both alloys demonstrated noticeably lower swelling behavior when their composition was changed to include 0.4 wt % ti.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5982968
- Report Number(s):
- CONF-8009179-5; ON: DE81032006
- Country of Publication:
- United States
- Language:
- English
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ALLOYS
CHARGED PARTICLES
CRYSTAL STRUCTURE
DATA
DEUTERIUM IONS
ENERGY RANGE
EXPERIMENTAL DATA
FIRST WALL
INFORMATION
IONS
IRON ALLOYS
IRON BASE ALLOYS
IRRADIATION
MEV RANGE
MEV RANGE 01-10
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL IONS
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SWELLING
THERMONUCLEAR REACTOR WALLS
VANADIUM ALLOYS