Investigation of coatings, applied by PVD, for the corrosion protection of materials in supercritical water

Rudi Van Nieuwenhove, Juraj Balak, Aki Toivonen, Sami Penttilä, Ulla Ehrnstén

Research output: Contribution to conferenceConference articleScientific

Abstract

Plasma coatings, applied by physical vapour deposition, as well as plasma surface treatments could find interesting applications in the nuclear field, both for existing types of reactors as well as for generation IV reactors (such as the supercritical water reactor).
A large variety of industrially available coatings exists. Among these, the following coatings (PVD) were investigated: TiAlN, CrN and ZrO2. Small coated samples (AISI 316L and Inconel 600) were exposed to supercritical water (at 650 °C, 250 bar) during about 1000 h at an oxygen content of 150 ppb.
Whereas the performance of the TiAlN and the ZrO2 coatings was not satisfactory, the CrN coating was found to provide a stable and protective corrosion barrier.
The CrN coated Inconel 600 base metal shows that chromium creates approximately 0.5 µm wide stable natural passivation oxide layer which protects the surface from further corrosion attack during exposure to SCW.
Weight gain measurements on the CrN coated samples were performed as well but did not show any significant change after exposure.
Original languageEnglish
Number of pages12
Publication statusPublished - 2013
MoE publication typeNot Eligible
Event6th International Symposium on Supercritical Water-Cooled Reactors ISSCWR-6 - Shenzhen, Guangdong, China
Duration: 3 Mar 20137 Mar 2013

Conference

Conference6th International Symposium on Supercritical Water-Cooled Reactors ISSCWR-6
Abbreviated titleISSCWR-6
CountryChina
CityShenzhen, Guangdong
Period3/03/137/03/13

Fingerprint

Physical vapor deposition
Corrosion protection
Coatings
Water
Gain measurement
Corrosion
Plasmas
Chromium
Weighing
Passivation
Oxides
Surface treatment
Metals
Oxygen

Cite this

Van Nieuwenhove, R., Balak, J., Toivonen, A., Penttilä, S., & Ehrnstén, U. (2013). Investigation of coatings, applied by PVD, for the corrosion protection of materials in supercritical water. Paper presented at 6th International Symposium on Supercritical Water-Cooled Reactors ISSCWR-6, Shenzhen, Guangdong, China.
Van Nieuwenhove, Rudi ; Balak, Juraj ; Toivonen, Aki ; Penttilä, Sami ; Ehrnstén, Ulla. / Investigation of coatings, applied by PVD, for the corrosion protection of materials in supercritical water. Paper presented at 6th International Symposium on Supercritical Water-Cooled Reactors ISSCWR-6, Shenzhen, Guangdong, China.12 p.
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abstract = "Plasma coatings, applied by physical vapour deposition, as well as plasma surface treatments could find interesting applications in the nuclear field, both for existing types of reactors as well as for generation IV reactors (such as the supercritical water reactor). A large variety of industrially available coatings exists. Among these, the following coatings (PVD) were investigated: TiAlN, CrN and ZrO2. Small coated samples (AISI 316L and Inconel 600) were exposed to supercritical water (at 650 °C, 250 bar) during about 1000 h at an oxygen content of 150 ppb. Whereas the performance of the TiAlN and the ZrO2 coatings was not satisfactory, the CrN coating was found to provide a stable and protective corrosion barrier. The CrN coated Inconel 600 base metal shows that chromium creates approximately 0.5 µm wide stable natural passivation oxide layer which protects the surface from further corrosion attack during exposure to SCW. Weight gain measurements on the CrN coated samples were performed as well but did not show any significant change after exposure.",
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Van Nieuwenhove, R, Balak, J, Toivonen, A, Penttilä, S & Ehrnstén, U 2013, 'Investigation of coatings, applied by PVD, for the corrosion protection of materials in supercritical water' Paper presented at 6th International Symposium on Supercritical Water-Cooled Reactors ISSCWR-6, Shenzhen, Guangdong, China, 3/03/13 - 7/03/13, .

Investigation of coatings, applied by PVD, for the corrosion protection of materials in supercritical water. / Van Nieuwenhove, Rudi; Balak, Juraj; Toivonen, Aki; Penttilä, Sami; Ehrnstén, Ulla.

2013. Paper presented at 6th International Symposium on Supercritical Water-Cooled Reactors ISSCWR-6, Shenzhen, Guangdong, China.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - Investigation of coatings, applied by PVD, for the corrosion protection of materials in supercritical water

AU - Van Nieuwenhove, Rudi

AU - Balak, Juraj

AU - Toivonen, Aki

AU - Penttilä, Sami

AU - Ehrnstén, Ulla

PY - 2013

Y1 - 2013

N2 - Plasma coatings, applied by physical vapour deposition, as well as plasma surface treatments could find interesting applications in the nuclear field, both for existing types of reactors as well as for generation IV reactors (such as the supercritical water reactor). A large variety of industrially available coatings exists. Among these, the following coatings (PVD) were investigated: TiAlN, CrN and ZrO2. Small coated samples (AISI 316L and Inconel 600) were exposed to supercritical water (at 650 °C, 250 bar) during about 1000 h at an oxygen content of 150 ppb. Whereas the performance of the TiAlN and the ZrO2 coatings was not satisfactory, the CrN coating was found to provide a stable and protective corrosion barrier. The CrN coated Inconel 600 base metal shows that chromium creates approximately 0.5 µm wide stable natural passivation oxide layer which protects the surface from further corrosion attack during exposure to SCW. Weight gain measurements on the CrN coated samples were performed as well but did not show any significant change after exposure.

AB - Plasma coatings, applied by physical vapour deposition, as well as plasma surface treatments could find interesting applications in the nuclear field, both for existing types of reactors as well as for generation IV reactors (such as the supercritical water reactor). A large variety of industrially available coatings exists. Among these, the following coatings (PVD) were investigated: TiAlN, CrN and ZrO2. Small coated samples (AISI 316L and Inconel 600) were exposed to supercritical water (at 650 °C, 250 bar) during about 1000 h at an oxygen content of 150 ppb. Whereas the performance of the TiAlN and the ZrO2 coatings was not satisfactory, the CrN coating was found to provide a stable and protective corrosion barrier. The CrN coated Inconel 600 base metal shows that chromium creates approximately 0.5 µm wide stable natural passivation oxide layer which protects the surface from further corrosion attack during exposure to SCW. Weight gain measurements on the CrN coated samples were performed as well but did not show any significant change after exposure.

M3 - Conference article

ER -

Van Nieuwenhove R, Balak J, Toivonen A, Penttilä S, Ehrnstén U. Investigation of coatings, applied by PVD, for the corrosion protection of materials in supercritical water. 2013. Paper presented at 6th International Symposium on Supercritical Water-Cooled Reactors ISSCWR-6, Shenzhen, Guangdong, China.