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KCl-Induced Corrosi...
KCl-Induced Corrosion of an FeCrAl Alloy at 600°C in O2 + H2O Environment: The Effect of Pre-oxidation
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- Israelsson, Niklas, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Engkvist, Josefin, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hellström, Kristina M, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Halvarsson, Mats, 1965 (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)
- 2014-10-31
- 2015
- English.
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In: Oxidation of Metals. - : Springer Science and Business Media LLC. - 1573-4889 .- 0030-770X. ; 83:1-2, s. 29-53
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Abstract
Subject headings
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- The present study investigates the influence of H2O and KCl on the high temperature corrosion of an FeCrAl alloy at 600 A degrees C. Polished samples were exposed to O-2 or O-2 + H2O and to O-2 + H2O with KCl applied. The samples were investigated using SEM/EDX, XRD, IC, AES and SIMS. It was found that KCl accelerates corrosion and that a rapidly growing iron-rich oxide forms with time. Chromate formation is shown to initiate the formation of a non-protective oxide scale. Pre-oxidising the alloy before exposure in the presence of KCl had a strongly beneficial effect on the corrosion.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- FeCrAl
- Water vapour
- KCl
- High temperature corrosion
- Pre-oxidation
Publication and Content Type
- art (subject category)
- ref (subject category)
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