Microstructural degradation in compound tubes
Year of publication
1996
Authors
Salonen, Jorma; Auerkari, Pertti
Abstract
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.
Show moreOrganizations and authors
VTT Technical Research Centre of Finland Ltd
Auerkari Pertti
Publication type
Publication format
Monograph
Audience
Scientific
Peer-reviewed
Peer-Reviewed
MINEDU's publication type classification code
C1 Scientific bookPublication channel information
Journal
VTT Publications
Publisher
VTT Technical Research Centre of Finland
Issue
279
ISSN
ISBN
Open access
Open access in the publisher’s service
Yes
License of the publisher’s version
Other license
Self-archived
No
Other information
Keywords
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Language
English
International co-publication
No
Co-publication with a company
No
The publication is included in the Ministry of Education and Culture’s Publication data collection
No