Corrosion of materials used in steam generating boiler systems. Final report
Technical Report
·
OSTI ID:5415299
Five alloys, SA178, SA192, SA213-T11, SA213-T22, and Type 304 Stainless Steel, were evaluated on their resistance to pitting in a coal burning boiler and in a residential refuse burning incinerator. The materials were introduced into the vicinity of the boiler tubes using a probe whose temperature was controlled and monitored to simulate conditions of the boiler tubes. After three to six months, the probes were withdrawn and the alloy specimens removed for evaluation. The data indicate that the environment of the refuse burning incinerator was considerably more aggressive than that of the coal burning boiler. Chloride was found in practically all the pits examined in the alloys from the refuse burning system, but no chloride was found in the pits examined on the materials exposed in the coal burning boiler. The data suggest that the moisture from lawn clippings increases the rate of attack which is further aggravated by large temperature fluctuations. Type 304 stainless steel was the most resistant to pitting in both environments, but the SA213-T11 and SA213-T22 were less resistant to pitting than the lower alloy SA178 and SA192 in the refuse burning incinerator.
- Research Organization:
- National Bureau of Standards, Washington, DC (USA). Metallurgy Div.
- DOE Contract Number:
- AT01-79CS20528
- OSTI ID:
- 5415299
- Report Number(s):
- NBSIR-84-2959; ON: DE85017205
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALLOYS
BOILERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COAL
CORROSION
CORROSION RESISTANT ALLOYS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCINERATORS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
NICKEL ALLOYS
PITTING CORROSION
REFUSE-FUELED BOILERS
STAINLESS STEEL-304
STAINLESS STEELS
STEAM GENERATORS
STEELS
TESTING
VAPOR GENERATORS
360105* -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALLOYS
BOILERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COAL
CORROSION
CORROSION RESISTANT ALLOYS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCINERATORS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
NICKEL ALLOYS
PITTING CORROSION
REFUSE-FUELED BOILERS
STAINLESS STEEL-304
STAINLESS STEELS
STEAM GENERATORS
STEELS
TESTING
VAPOR GENERATORS