High temperature corrosion of alloys and ceramics by alkali chlorides
Book
·
OSTI ID:376069
- Univ. of Illinois, Chicago, IL (United States). Dept. of Civil and Materials Engineering
Alkali chlorides are well known to cause accelerated corrosion. At elevated temperatures, the presence of alkali chlorides as vapors or molten deposits can cause accelerated attack of either high temperature metal alloys or ceramics. The mechanism of attack is different in the two cases, however, with the chlorine component being most aggressive for corrosion of metals and the alkali being most aggressive for corrosion of ceramics. The reaction of the alkali chloride with the oxide scale on metals releases chlorine which causes accelerated corrosion. The corrosion rate can be reduced by absorbing this chlorine. For ceramics, the alkali oxide species produced by such reactions is most damaging and the rate of corrosion can be reduced by adding chlorine to the system.
- OSTI ID:
- 376069
- Report Number(s):
- CONF-960389--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
CHEMICAL REACTIONS
CORROSION
EXPERIMENTAL DATA
FILMS
INDUSTRIAL WASTES
IRON BASE ALLOYS
MUNICIPAL WASTES
OXIDATION
PROTECTIVE COATINGS
SCALING
SILICON CARBIDES
SILICON NITRIDES
TEMPERATURE DEPENDENCE
WASTE PROCESSING
WEIGHT MEASUREMENT
36 MATERIALS SCIENCE
CHEMICAL REACTIONS
CORROSION
EXPERIMENTAL DATA
FILMS
INDUSTRIAL WASTES
IRON BASE ALLOYS
MUNICIPAL WASTES
OXIDATION
PROTECTIVE COATINGS
SCALING
SILICON CARBIDES
SILICON NITRIDES
TEMPERATURE DEPENDENCE
WASTE PROCESSING
WEIGHT MEASUREMENT