Mass transfer deposits in lithium-type 316 stainless steel thermal-convection loops
Conference
·
OSTI ID:5497018
In spatially nonisothermal flowing liquid metal systems, selected constitutents of the containment materials characteristically dissolve into the liquid metal in the hotter zones and are deposited in the colder areas. The accumulation of deposits is often a more serious problem than dissolution because of attendant flow restrictions and, in reactor applications, the aggregation of radioactive species in the coolant circuits. Accordingly, the deposition processes in lithium-type 316 stainless steel thermal convection loops is studied. The morphology and composition of deposits varied with loop operating time. Initially, chromium-rich dendritic crystals formed in the colder region of a loop, but later the deposits changed in structure and contained significant amounts of nickel and iron. Deposition rates were also measured as a function of time and temperature and were correlated with the above observations. A plug extracted from one loop consisted of an aggregate of chromium-rich crystals.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5497018
- Report Number(s):
- CONF-800401-6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700204* -- Fusion Power Plant Technology-- Cooling Systems
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALKALI METALS
ALLOYS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COOLING SYSTEMS
CORROSION
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
DEPOSITION
DEPOSITS
ELEMENTS
ENERGY TRANSFER
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TRANSFER
IRON ALLOYS
IRON BASE ALLOYS
LITHIUM
MASS TRANSFER
MATERIALS
METALS
MICROSTRUCTURE
MOCKUP
MOLYBDENUM ALLOYS
NICKEL ALLOYS
REACTOR MATERIALS
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
STRUCTURAL MODELS
THERMONUCLEAR REACTOR COOLING SYSTEMS
TIME DEPENDENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700204* -- Fusion Power Plant Technology-- Cooling Systems
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALKALI METALS
ALLOYS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COOLING SYSTEMS
CORROSION
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
DEPOSITION
DEPOSITS
ELEMENTS
ENERGY TRANSFER
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TRANSFER
IRON ALLOYS
IRON BASE ALLOYS
LITHIUM
MASS TRANSFER
MATERIALS
METALS
MICROSTRUCTURE
MOCKUP
MOLYBDENUM ALLOYS
NICKEL ALLOYS
REACTOR MATERIALS
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
STRUCTURAL MODELS
THERMONUCLEAR REACTOR COOLING SYSTEMS
TIME DEPENDENCE