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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