SEM examinations of oxidation characteristics of Alloy 800H. [1143 and 1253/sup 0/K]
Technical Report
·
OSTI ID:6290524
Oxidation characteristics of Alloy 800H at 1143 and 1253/sup 0/K observed with SEM techniques are summarized. Different oxide phases developed heterogeneously in an outer layer under which a more continuous, dense, Cr-rich oxide layer formed. Growth rates of these oxides were greatest at grain boundaries, and exfoliation sometimes resulted. Chemical constituents of the various oxide phases were identified by EDS. The current work is being performed to provide a background for subsequent studies of corrosion in sulfur-bearing gases relative to coal gasification environments. 8 figures.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls (USA)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 6290524
- Report Number(s):
- EGG-M-03582; ON: DE81029057
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
AIR
ALLOYS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COAL GASIFICATION PLANTS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
FLUIDS
GASES
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCOLOY 800
INCOLOY ALLOYS
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
MATERIALS
MICROSCOPY
MICROSTRUCTURE
NICKEL ALLOYS
OXIDATION
REACTION KINETICS
VERY HIGH TEMPERATURE
010404 -- Coal
Lignite
& Peat-- Gasification
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
AIR
ALLOYS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COAL GASIFICATION PLANTS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
FLUIDS
GASES
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCOLOY 800
INCOLOY ALLOYS
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
MATERIALS
MICROSCOPY
MICROSTRUCTURE
NICKEL ALLOYS
OXIDATION
REACTION KINETICS
VERY HIGH TEMPERATURE