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A Microstructural a...
A Microstructural and Kinetic Investigation of the KCl-Induced Corrosion of an FeCrAl Alloy at 600 A degrees C
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- Israelsson, Niklas, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Unocic, K.A. (author)
- Oak Ridge National Laboratory
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- Hellström, Kristina M, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jonsson, Torbjörn, 1970 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Norell, Mats, 1961 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Svensson, Jan-Erik, 1965 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Johansson, Lars-Gunnar, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2015-03-18
- 2015
- English.
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In: Oxidation of Metals. - : Springer Science and Business Media LLC. - 1573-4889 .- 0030-770X. ; 84:1-2, s. 105-127
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Abstract
Subject headings
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- The corrosion behaviour of a FeCrAl alloy was investigated at 600 A degrees C in O-2 + H2O with solid KCl applied. A kinetics and microstructural investigation showed that KCl accelerates corrosion and that potassium chromate formation depletes the protective scale in Cr, thus triggering the formation of a fast-growing iron-rich scale. Iron oxide was found to grow both inward and outward, on either side of the initial oxide. A chromia layer is formed with time underneath the iron oxide. It was found that although the alloy does not form a continuous pure alumina scale at the investigated temperature, aluminium is, however, always enriched at the oxide/alloy interface.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- High-temperature corrosion
- KCl
- FeCrAl
- Water vapour
Publication and Content Type
- art (subject category)
- ref (subject category)
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