Modeling of fusion activation product release and reactor damage from rapid structural oxidation

Conference · Thu Sep 01 04:00:00 EDT 1983 · Nucl. Technol./Fusion; (United States)

OSTI ID:6216701

Piet, S J; Kazimi, M S

Rapid structural oxidation resulting from accidental high temperature exposure of activated fusion material to reactive gases is potentially an important mechanism in the release of radioactivity or damage to the reactor. The reaction rates of 316 SS, HT-9, V-alloy, and TZM with air have been examined on the basis of theory and previous experiments. The low melting points of the primary oxides of the base metals cause oxidation of V-alloy and TZM to become very rapid above approximately 700/sup 0/C, although vanadium species are far less volatile. The Mo content of 316 SS and HT-9 appears to make them susceptible to rapid oxidation above approximately 1000 and 1300/sup 0/C, respectively. At such temperatures, the oxidation rates of steels are predicted to be over an order of magnitude less than Mo and V. The volatilization rates of TZM are expected to be several orders of magnitude higher than the other materials studied.

• Research Organization: EG and G Idaho, Inc./Fusion Safety, P.O. Box 1625, Idaho Falls, ID 83415
• OSTI ID: 6216701
• Report Number(s): CONF-830406-
• Conference Information: Journal Name: Nucl. Technol./Fusion; (United States) Journal Volume: 4:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
360106 -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOY-HT-9
ALLOY-TZM
ALLOYS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CHROMIUM-NICKEL STEELS
COMPARATIVE EVALUATIONS
CORROSION RESISTANT ALLOYS
DAMAGE
ELEMENTS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
MATERIALS
MATHEMATICAL MODELS
METALLURGICAL EFFECTS
METALS
MOLYBDENUM
MOLYBDENUM ALLOYS
MOLYBDENUM BASE ALLOYS
NICKEL ALLOYS
OXIDATION
RADIOACTIVATION
RADIOACTIVE MATERIALS
REACTION KINETICS
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
THERMONUCLEAR REACTOR MATERIALS
TITANIUM ALLOYS
TRANSITION ELEMENTS
VANADIUM ALLOYS
VERY HIGH TEMPERATURE
VOLATILITY
ZIRCONIUM ALLOYS