High temperature corrosion and remaining lifetime assessment of ferritic steel 13CrMo4-4 tubes in a convective superheater of a CFB oil shale boiler
| Autor: | Ivan Klevtsov, Toomas Lausmaa, Andrei Dedov, Tatjana Bojarinova |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Convection
Materials science 020209 energy General Chemical Engineering High-temperature corrosion Metallurgy Boiler (power generation) 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Corrosion 0202 electrical engineering electronic engineering information engineering General Materials Science Spallation Fluidized bed combustion 0210 nano-technology Superheater Oil shale |
| Zdroj: | Corrosion Science. 164:108311 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2019.108311 |
| Popis: | Heating surfaces tubes of oil shale boilers are subject to intensive high temperature corrosion (HTC). HTC of ferritic steel 13CrMo4-4 was investigated under controlled laboratory conditions and in the convective superheater of the circulating fluidized bed (CFB) boiler. The protective oxide scale was analyzed. Results have shown that the protective oxide scale formed during the long term tests in the boiler is layered and tends to spallation from the tube surface. Remaining lifetime assessment for particular tubes has also been carried out on the basis of investigation results. |
| Databáze: | OpenAIRE |
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