Deuterium profilemetry and diffusion coefficient in electrocharged stainless steel
Conference
·
OSTI ID:6814126
The method of nuclear microanalysis using the reaction D(d,p)T is used to measure concentration-depth profiles of deuterium in austenitic Type 310 stainless steel electrocharged in 1 N D/sub 2/SO/sub 4/ with arsenic poison at room temperature. The influence of aging after charging is examined. A near-surface density of 0.6 deuterium atoms per metal atom (i.e., 38 at. %) is found for the initially charged condition. Associated with this high gas concentration is considerable microstructural damage. An analysis of the deuterium depth profiles yields a room-temperature diffusion coefficient for deuterium of 1.4 x 10/sup -16/ m/sup 2/s/sup -1/ at high concentrations which is consistent with extrapolation of higher-temperature data available from other techniques for annealed material. At lower deuterium concentrations, < 10/sup -2/, in the aged material the extracted diffusion coefficient is a factor of three higher, implying a dependence on concentration. At concentrations < 10/sup -3/, diffusion may be hindered by dislocation trapping.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6814126
- Report Number(s):
- CONF-800850-2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360100* -- Metals & Alloys
AGING
ALLOYS
CHARGED-PARTICLE REACTIONS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
DEPTH
DEUTERIUM
DEUTERIUM COMPOUNDS
DEUTERON REACTIONS
DIFFUSION
DIMENSIONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGENATION
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
MATERIALS
MICROANALYSIS
NICKEL ALLOYS
NUCLEAR REACTION ANALYSIS
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
STABLE ISOTOPES
STAINLESS STEEL-310
STAINLESS STEELS
STEELS
SULFURIC ACID
SURFACES
360100* -- Metals & Alloys
AGING
ALLOYS
CHARGED-PARTICLE REACTIONS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
DEPTH
DEUTERIUM
DEUTERIUM COMPOUNDS
DEUTERON REACTIONS
DIFFUSION
DIMENSIONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGENATION
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
MATERIALS
MICROANALYSIS
NICKEL ALLOYS
NUCLEAR REACTION ANALYSIS
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
STABLE ISOTOPES
STAINLESS STEEL-310
STAINLESS STEELS
STEELS
SULFURIC ACID
SURFACES