Corrosion product identification and relative rates of corrosion of candidate metals in an irradiated air-steam environment

Conference · Fri Nov 03 00:00:00 EST 1989

OSTI ID:6926600

Reed, D T; Swayambunathan, V; Tani, B S ^[1]; Van Konynenburg, R A ^[2]

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1. Argonne National Lab., IL (USA)
2. Lawrence Livermore National Lab., CA (USA)

Previously reported work by others indicates that dicopper trihydroxide nitrate, Cu{sub 2}NO{sub 3}(OH){sub 3}, forms on copper and copper alloys subjected to irradiated moist air near room temperature. We have performed experiments over a range of temperature and humidity, and have found that this species is formed at temperatures up to at least 150{degree}C if low to intermediate relative humidities are present. At 150{degree}C and 100% relative humidity, only Cu{sub 2}O and CuO were observed. The relative general corrosion rates of the copper materials tested in 1-month experiments at dose rates of 0.7 and 2.0 kGy/h were Cu > 70/30 Cu--Ni > Al-bronze. High-nickel alloy 825 showed no observable corrosion. 29 refs., 4 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/RW
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6926600
• Report Number(s): UCRL-102597; CONF-891129-3; ON: DE90011464; TRN: 90-017244
• Resource Relation: Conference: Scientific basis for nuclear waste management, Boston, MA (USA), 27-30 Nov 1989
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
COPPER ALLOYS
CORROSION
COPPER BASE ALLOYS
AIR
COPPER NITRATES
COPPER OXIDES
CORROSION PRODUCTS
HUMIDITY
IRRADIATION
OXIDATION
RADIOACTIVE WASTE DISPOSAL
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
FLUIDS
GASES
MANAGEMENT
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WASTE DISPOSAL
WASTE MANAGEMENT
360105* - Metals & Alloys- Corrosion & Erosion
052002 - Nuclear Fuels- Waste Disposal & Storage