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Detailed analysis o...
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Tejland, Pia,1978Chalmers tekniska högskola,Chalmers University of Technology
(författare)
Detailed analysis of the microstructure of the metal/oxide interface region in Zircaloy-2 after autoclave corrosion testing
- Artikel/kapitelEngelska2011
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LIBRIS-ID:oai:research.chalmers.se:9787f983-c91f-486d-b2fa-6ee78929f942
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ISBN:9780803175150
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https://research.chalmers.se/publication/156769URI
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https://doi.org/10.1520/JAI102956DOI
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Språk:engelska
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Sammanfattning på:engelska
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Two varieties of Zircaloy-2, with different second phase particle (SPP) size distributions and different corrosion resistance, were oxidized in a steam autoclave. Transmission electron microscopy (TEM) of large thin-foil cross-sections of the oxide and the adjacent metal shows an undulating metal/oxide interface in both materials with a periodicity of slightly less than 1 μm and an amplitude of around 100 nm. The SPPs oxidize slower than the surrounding metal, and the absence of volume increase leads to void and crack formation as the SPPs become embedded in the oxide. On SPP oxidation, iron diffuses out of the particles into the surrounding oxide. A sub-oxide with an oxygen content of approximately 50 at. % and a layer thickness of about 200 nm was observed close to the metal/oxide interface. There is a 200 nm oxygen concentration gradient into the metal, from the level close to the sub-oxide of about 30 at. % down to a few atomic percent. All tin in the matrix is incorporated in the sub-oxide, and no segregation to the metal/oxide interface was found.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Thuvander, Mattias,1968Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)matthu
(författare)
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Andrén, Hans-Olof,1947Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)andren
(författare)
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Ciurea, S.Sandvik Group AB
(författare)
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Andersson, ThomasSandvik Group AB
(författare)
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Dahlbäck, MatsWestinghouse Electric Sweden AB
(författare)
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Hallstadius, LarsWestinghouse Electric Sweden AB
(författare)
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Chalmers tekniska högskolaSandvik Group AB
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:ASTM Special Technical Publication. 16th International Symposium on Zirconium in the Nuclear Industry, Chengdu, Sinchuan Province, 9-13 May 20101529 STP, s. 595-6170066-05589780803175150
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