Laboratory studies on corrosion of materials for fluidized bed combustion applications
An extensive corrosion test program was conducted at Argonne National Laboratory to evaluate the corrosion performance of metallic structural materials in environments that simulate both steady-state and off-normal exposure conditions anticipated in fluidized bed combustion (FBC) systems. This report discusses the possible roles of key parameters, such as sorbent and gas chemistries, metal temperature, gas cycling conditions, and alloy pretreatment, in the corrosion process. Data on scale thickness and intergranular penetration depth are presented for several alloys as a function of the chemistry of the exposure environment, deposit chemistry, and exposure time. Test results were obtained to compare the corrosion behavior of materials in the presence of reagent grade sorbent compounds and spent-bed materials from bubbling- and circulating-fluid-bed systems. Finally, the laboratory test results were compared with metal wastage information developed over the years in several fluidized bed test facilities. Metallic alloys chosen for the tests were carbon steel, Fe-2 1/4Cr-1Mo and Fe-9Cr-1Mo ferritic steels. Types 304 and 310 stainless steel, and Incoloy 800. 26 refs., 61 figs., 8 tabs.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6407403
- Report Number(s):
- ANL/FE-90/1; ON: DE91002960
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360105 -- Metals & Alloys-- Corrosion & Erosion
ALKALINE EARTH METAL COMPOUNDS
ALLOY-FE46NI33CR21
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
AUSTENITIC STEELS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CALCIUM SULFATES
CARBON STEELS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
COAL
COMBUSTORS
CORROSION
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
DEPOSITS
ENERGY SOURCES
FERRITIC STEELS
FLUIDIZED-BED COMBUSTORS
FLUIDS
FOSSIL FUELS
FUELS
GASES
HEAT EXCHANGERS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
INCOLOY 800
INCOLOY ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MICROSTRUCTURE
NICKEL ALLOYS
OXIDES
OXYGEN COMPOUNDS
SCALING
STAINLESS STEEL-304
STAINLESS STEEL-310
STAINLESS STEELS
STEEL-CR19NI10
STEEL-CR25NI20
STEELS
SULFATES
SULFIDATION
SULFUR COMPOUNDS
TITANIUM ADDITIONS
TITANIUM ALLOYS