Oxidation performance coatings for future supercritical power plants

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

For improved efficiency and reduced emissions, the future power plants need to operate at high temperatures and pressures, which however are limited by the durability of conventional materials such as ferritic steels. Steam oxidation of a number of coatings (Al slurries, thermal spraying, CVD siliconizing and nickel plating) has demonstrated the feasibility of coatings to improve the oxidation resistance. Al slurry coatings combine good high temperature oxidation resistance through the growth of an Al2O3 layer and the possibility to apply the coating on an industrial scale at moderate cost. This work aimed to test the oxidation performance of coatings and reference alloys in ultrasupercritical (USC, 650ÛC / 250 bar) water. The tested materials included Al slurry coating on ferritic 9%Cr steel and nickel-base A263 substrates, and bulk P92, MARBN and A263 alloys as reference specimens. Oxidation resistance was tested by exposure to flowing supercritical water (SCW) with 125 ppb dissolved oxygen at 650ÛC/250 bar up to 1000 h.
Original languageEnglish
Title of host publication Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7
PublisherVTT Technical Research Centre of Finland
Number of pages10
ISBN (Electronic)978-951-38-8289-1
ISBN (Print)978-951-38-8290-7
Publication statusPublished - 2015
MoE publication typeB3 Non-refereed article in conference proceedings
Event7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7 - Helsinki, Finland
Duration: 15 Mar 201518 Mar 2015

Publication series

NameVTT Technology
PublisherVTT
Number216
ISSN (Print)2242-1211

Conference

Conference7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7
Abbreviated titleISSCWR-7
CountryFinland
CityHelsinki
Period15/03/1518/03/15

Fingerprint

power plants
coatings
oxidation
oxidation resistance
siliconizing
nickel
steels
slurries
spraying
plating
durability
steam
water
vapor deposition
costs
oxygen

Cite this

Oksa, M., Tuurna, S., Metsäjoki, J., & Penttilä, S. (2015). Oxidation performance coatings for future supercritical power plants. In Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7 [2057] VTT Technical Research Centre of Finland. VTT Technology, No. 216
Oksa, Maria ; Tuurna, Satu ; Metsäjoki, Jarkko ; Penttilä, Sami. / Oxidation performance coatings for future supercritical power plants. Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7. VTT Technical Research Centre of Finland, 2015. (VTT Technology; No. 216).
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abstract = "For improved efficiency and reduced emissions, the future power plants need to operate at high temperatures and pressures, which however are limited by the durability of conventional materials such as ferritic steels. Steam oxidation of a number of coatings (Al slurries, thermal spraying, CVD siliconizing and nickel plating) has demonstrated the feasibility of coatings to improve the oxidation resistance. Al slurry coatings combine good high temperature oxidation resistance through the growth of an Al2O3 layer and the possibility to apply the coating on an industrial scale at moderate cost. This work aimed to test the oxidation performance of coatings and reference alloys in ultrasupercritical (USC, 650{\^U}C / 250 bar) water. The tested materials included Al slurry coating on ferritic 9{\%}Cr steel and nickel-base A263 substrates, and bulk P92, MARBN and A263 alloys as reference specimens. Oxidation resistance was tested by exposure to flowing supercritical water (SCW) with 125 ppb dissolved oxygen at 650{\^U}C/250 bar up to 1000 h.",
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Oksa, M, Tuurna, S, Metsäjoki, J & Penttilä, S 2015, Oxidation performance coatings for future supercritical power plants. in Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7., 2057, VTT Technical Research Centre of Finland, VTT Technology, no. 216, 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7, Helsinki, Finland, 15/03/15.

Oxidation performance coatings for future supercritical power plants. / Oksa, Maria; Tuurna, Satu; Metsäjoki, Jarkko; Penttilä, Sami.

Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7. VTT Technical Research Centre of Finland, 2015. 2057 (VTT Technology; No. 216).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

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T1 - Oxidation performance coatings for future supercritical power plants

AU - Oksa, Maria

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N2 - For improved efficiency and reduced emissions, the future power plants need to operate at high temperatures and pressures, which however are limited by the durability of conventional materials such as ferritic steels. Steam oxidation of a number of coatings (Al slurries, thermal spraying, CVD siliconizing and nickel plating) has demonstrated the feasibility of coatings to improve the oxidation resistance. Al slurry coatings combine good high temperature oxidation resistance through the growth of an Al2O3 layer and the possibility to apply the coating on an industrial scale at moderate cost. This work aimed to test the oxidation performance of coatings and reference alloys in ultrasupercritical (USC, 650ÛC / 250 bar) water. The tested materials included Al slurry coating on ferritic 9%Cr steel and nickel-base A263 substrates, and bulk P92, MARBN and A263 alloys as reference specimens. Oxidation resistance was tested by exposure to flowing supercritical water (SCW) with 125 ppb dissolved oxygen at 650ÛC/250 bar up to 1000 h.

AB - For improved efficiency and reduced emissions, the future power plants need to operate at high temperatures and pressures, which however are limited by the durability of conventional materials such as ferritic steels. Steam oxidation of a number of coatings (Al slurries, thermal spraying, CVD siliconizing and nickel plating) has demonstrated the feasibility of coatings to improve the oxidation resistance. Al slurry coatings combine good high temperature oxidation resistance through the growth of an Al2O3 layer and the possibility to apply the coating on an industrial scale at moderate cost. This work aimed to test the oxidation performance of coatings and reference alloys in ultrasupercritical (USC, 650ÛC / 250 bar) water. The tested materials included Al slurry coating on ferritic 9%Cr steel and nickel-base A263 substrates, and bulk P92, MARBN and A263 alloys as reference specimens. Oxidation resistance was tested by exposure to flowing supercritical water (SCW) with 125 ppb dissolved oxygen at 650ÛC/250 bar up to 1000 h.

M3 - Conference article in proceedings

SN - 978-951-38-8290-7

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BT - Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7

PB - VTT Technical Research Centre of Finland

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Oksa M, Tuurna S, Metsäjoki J, Penttilä S. Oxidation performance coatings for future supercritical power plants. In Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7. VTT Technical Research Centre of Finland. 2015. 2057. (VTT Technology; No. 216).