Corrosion in the off-gas system of a radioactive-waste incinerator
Conference
·
OSTI ID:7148148
Corrosion in a low-level radioactive-waste incinerator off-gas system at the Department of Energy's Savannah River Plant is discussed. Severe corrosive attack and failure of an alloy 600 part exposed to high-temperature (>1000/sup 0/C) gases was observed. Rapid attack of carbon steel components, and cracking of austenitic stainless steel parts also occurred at locations where lower gas temperatures and periodic condensate exposure occurred. Investigation showed HCl, SO/sub 2/, SO/sub 3/ and phosphorus-oxides were present and contributed to the failures. Mechanisms of high-temperature failure include alloy separation and reactions with phosphorus. Coupons placed in the exhaust stream have provided information for selection of future materials of construction for system components. Several nickel- and iron-base alloys, and a stainless steel with an aluminum-diffusion coating were investigated.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Plant
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 7148148
- Report Number(s):
- DP-MS-86-51; CONF-870314-2; ON: DE87002646
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION
FAILURES
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INCINERATORS
INCONEL 600
INCONEL ALLOYS
INORGANIC ACIDS
IRON ALLOYS
LOW-LEVEL RADIOACTIVE WASTES
MATERIALS
NATIONAL ORGANIZATIONS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
NUCLEAR FACILITIES
OFF-GAS SYSTEMS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
SAVANNAH RIVER PLANT
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFUR TRIOXIDE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION
FAILURES
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INCINERATORS
INCONEL 600
INCONEL ALLOYS
INORGANIC ACIDS
IRON ALLOYS
LOW-LEVEL RADIOACTIVE WASTES
MATERIALS
NATIONAL ORGANIZATIONS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
NUCLEAR FACILITIES
OFF-GAS SYSTEMS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
SAVANNAH RIVER PLANT
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFUR TRIOXIDE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTES