Production, fabrication, and performance of alloy 625 clad steel for aggressive corrosive environments
INCONEL/sup */ alloy 625 is a nickel-chromium-molybdenum-columbium alloy used in aggressive corrosive applications where high strength, fabricability, and outstanding corrosion resistance are required. Because of these properties, the alloy is used by the power and chemical industries in a variety of components in coal-fired, nuclear, and chemical process plants. However, widespread use of INCONEL alloy 625 is limited due to its cost. There is a need, notably in utility flue gas desulfurization systems (scrubbers) for an economical, highly corrosive-resistant material. To satisfy this need, INCONEL alloy 625 thin-gauge clad steel plate was developed by Lukens Steel Company. The corrosion resistance of INCONEL alloy 625 in several aggressive corrosive environments will be reviewed. Additionally, this paper will describe methods used to manufacture, fabricate, and weld INCONEL alloy 625 clad plate. Field test evaluation programs conducted at six power plant scrubber systems will also be reported.
- Research Organization:
- Lukens Steel Co., Coatesville, PA
- OSTI ID:
- 6776977
- Journal Information:
- J. Mater. Energy Syst.; (United States), Journal Name: J. Mater. Energy Syst.; (United States) Vol. 8:1; ISSN JMSMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360101* -- Metals & Alloys-- Preparation & Fabrication
360105 -- Metals & Alloys-- Corrosion & Erosion
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALLOYS
CHEMICAL PLANTS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION RESISTANCE
CORROSIVE EFFECTS
COST
DESULFURIZATION
EQUIPMENT
FABRICATION
FIELD TESTS
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
INCONEL 625
INCONEL ALLOYS
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MATERIALS TESTING
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
PERFORMANCE TESTING
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
SCRUBBERS
STEELS
TANTALUM ALLOYS
TESTING
THERMAL POWER PLANTS
WASTES
WELDING