EFFECTS OF RADIATION ON METAL-CLAD GRAPHITE IN HIGH-TEMPERATURE, HIGH- PRESSURE CO$sub 2$

Technical Report · Thu Nov 19 04:00:00 EST 1959

OSTI ID:4192247

Kosiba, W L

Graphite specimens, clad with Inconel and Type 310 and Type 446 stainless steels, were encased in a stainless steel tube containing a CO/sub 2/ atmosphere and irradiated at 1500 deg F and 1000 psi. Radiation effects on the graphite specimens were studied by metallographic examinations and microhardness, dimensional, and weight measurements. Corrosion of all the cladding materials by CO/sub 2/ took place in both the presence and absence of radiation. Larger weight changes were noted for the irradiated specimens. Dimensional changes were not significant except where low pressures were used (diameter expansion of 2 to 6% resulted). Gas analyses indicated that radiation promotes the dissociation of CO/sub 2/, creating a more corrosive atmosphere. Very little or no carburization was observed at the claddinggraphite interface at 1500 deg F and 1000 psi either in the presence or absence of radiation. (C.J.G.)

• Research Organization: General Atomic Div., General Dynamics Corp., San Diego, Calif.
• NSA Number: NSA-14-009815
• OSTI ID: 4192247
• Report Number(s): GA-914
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM ALLOYS
ATMOSPHERE
CANNING
CARBON DIOXIDE
CARBURIZATION
CHROMIUM ALLOYS
CORROSION
DECOMPOSITION
EXPANSION
GASES
GRAPHITE
HARDNESS
HIGH TEMPERATURE
INCONEL ALLOYS
IRRADIATION
MEASURED VALUES
METALLOGRAPHY
METALS
METALS, CERAMICS, AND MATERIALS
NICKEL ALLOYS
NIOBIUM ALLOYS
PRESSURE
RADIATION EFFECTS
STAINLESS STEELS
SURFACES
TITANIUM ALLOYS
TUBES
VOLUME
WEIGHT