Radiation hardening of oxygen-doped niobium by 14-MeV neutrons
Conference
·
OSTI ID:5782082
The flow properties of niobium containing 185 and 480 wt ppM oxygen have been studied following irradiation at 300K with T(d,n) neutrons to fluence levels ranging from 6 x 10/sup 20/ to 2 x 10/sup 22/ m/sup -2/. Two hardening stages connected by a plateau region were observed in the niobium containing 185 wt ppM oxygen. Increasing the oxygen content by 300 wt ppM oxygen shifted the beginning of the high-fluence hardening stage from 6 x 10/sup 21/ to 1 x 10/sup 21/ m/sup -2/, thereby eliminating the plateau region. This shift resulted in 1.5 times more hardening in the oxygen-doped niobium irradiated to fluence levels above 5 x 10/sup 21/ m/sup -2/.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5782082
- Report Number(s):
- PNL-SA-11320; CONF-830942-13; ON: DE84000103
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
BARYON REACTIONS
DOPED MATERIALS
ELEMENTS
ENERGY RANGE
HADRON REACTIONS
HARDENING
IMPURITIES
MATERIALS
METALS
MEV RANGE
MEV RANGE 10-100
NEUTRON FLUENCE
NEUTRON REACTIONS
NIOBIUM
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATION HARDENING
TRANSITION ELEMENTS
360106* -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
BARYON REACTIONS
DOPED MATERIALS
ELEMENTS
ENERGY RANGE
HADRON REACTIONS
HARDENING
IMPURITIES
MATERIALS
METALS
MEV RANGE
MEV RANGE 10-100
NEUTRON FLUENCE
NEUTRON REACTIONS
NIOBIUM
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATION HARDENING
TRANSITION ELEMENTS