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Microstructural degradation in compound tubes

Publiceringsår

1996

Upphovspersoner

Salonen, Jorma; Auerkari, Pertti

Abstrakt

In order to quantify microstructural degradation at high temperatures, samples of SA 210 / AISI 304 L compound tube material were annealed in the temperature range 540 - 720°C for 1 to 1 000 hours. The hardness of the annealed material was measured and the microstructure of the samples was investigated with optical and scanning electron microscopy. Microstructural degradation was characterised by the carbide structure in the ferritic-pearlitic base material and by the depth of decarburised and carburised zones of the compound tube interface. The observed changes were quantified in terms of their time and temperature dependence and diffusion coefficients of the process. The results can be used in estimating the extent of thermal exposure of high-temperature components after long-term service or after incidences of overheating.
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Organisationer och upphovspersoner

Publikationstyp

Publikationsform

Separat verk

Målgrupp

Vetenskaplig

Kollegialt utvärderad

Kollegialt utvärderad

UKM:s publikationstyp

C1 Separat utgivet vetenskapligt verk

Publikationskanalens uppgifter

Journal

VTT Publications

Förläggare

VTT Technical Research Centre of Finland

Nummer

279

Öppen tillgång

Öppen tillgänglighet i förläggarens tjänst

Ja

Licens för förläggarens version

Annan licens

Parallellsparad

Nej

Övriga uppgifter

Nyckelord

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Språk

engelska

Internationell sampublikation

Nej

Sampublikation med ett företag

Nej

Publikationen ingår i undervisnings- och kulturministeriets datainsamling

Nej