Chromium Enrichment on P11 Ferritic Steel by Pack Cementation
The future thermal power plant is expected to operate at higher temperature to improve its efficiency and to reduce greenhouse gas emission. This target requires better corrosion properties of ferritic steels, which commonly used as materials for superheater and reheater of boiler tubes. In this...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
EDP Sciences
2016
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/11078/ http://umpir.ump.edu.my/id/eprint/11078/ http://umpir.ump.edu.my/id/eprint/11078/1/Chromium%20Enrichment%20on%20P11%20Ferritic%20Steel%20by%20Pack%20Cementation.pdf |
| Summary: | The future thermal power plant is expected to operate at higher temperature to improve its
efficiency and to reduce greenhouse gas emission. This target requires better corrosion
properties of ferritic steels, which commonly used as materials for superheater and reheater of
boiler tubes. In this work, chromium enrichment on the surface of ferritic steel is studied. The
deposited chromium is expected to become a reservoir for the formation of chromia
protective layer. Chromium was deposited on the substrate of steel by pack cementation
process for two hours at the temperature of 850ºC, 950ºC and 1050ºC, respectively. XRD
analysis indicated that chromium was successfully deposited at all temperatures. Somehow,
SEM cross sectional image showed that continuous layer of chromium was not continuously
formed at 850oC. Therefore, this research clarify that chromium enrichment by pack
cementation may be conducted at the temperature above 950oC |
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