Creep of Directionally Solidified Eutectics Ni/Ni3 Al–NbC under Thermal Cycling

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • I. L. Svetlov
  • A. I. Epishin
  • N. V. Petrushin
  • G. Gerstein
  • G. Nolze
  • H. J. Maier

Organisationseinheiten

Externe Organisationen

  • Russian Research Centre Kurchatov Institute
  • Russian Academy of Sciences (RAS)
  • Bundesanstalt für Materialforschung und -prüfung (BAM)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)1099-1108
Seitenumfang10
FachzeitschriftInorganic Materials: Applied Research
Jahrgang13
Ausgabenummer4
Frühes Online-Datum19 Juli 2022
PublikationsstatusVeröffentlicht - Aug. 2022

Abstract

Abstract: A nickel-based eutectic alloy with a γ/γ '-NbC structure was directionally solidified with a planar front. The specimens were tested for creep under sawtooth thermal cycling in the temperature range from 600 to 1100°C. It has been established that the lifetime under the conditions of thermal cycling is about five times shorter than it is predicted by the linear damage accumulation rule on the basis of results of isothermal creep tests. Faster creep under thermal cycling is caused by the rapid coarsening of the γ/γ ' microstructure due to the periodic partial dissolution and reprecipitation of the γ ' phase in heating and cooling half-cycles.

ASJC Scopus Sachgebiete

Zitieren

Creep of Directionally Solidified Eutectics Ni/Ni3 Al–NbC under Thermal Cycling. / Svetlov, I. L.; Epishin, A. I.; Petrushin, N. V. et al.
in: Inorganic Materials: Applied Research, Jahrgang 13, Nr. 4, 08.2022, S. 1099-1108.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Svetlov, IL, Epishin, AI, Petrushin, NV, Gerstein, G, Nolze, G & Maier, HJ 2022, 'Creep of Directionally Solidified Eutectics Ni/Ni3 Al–NbC under Thermal Cycling', Inorganic Materials: Applied Research, Jg. 13, Nr. 4, S. 1099-1108. https://doi.org/10.1134/S2075113322040347
Svetlov, I. L., Epishin, A. I., Petrushin, N. V., Gerstein, G., Nolze, G., & Maier, H. J. (2022). Creep of Directionally Solidified Eutectics Ni/Ni3 Al–NbC under Thermal Cycling. Inorganic Materials: Applied Research, 13(4), 1099-1108. https://doi.org/10.1134/S2075113322040347
Svetlov IL, Epishin AI, Petrushin NV, Gerstein G, Nolze G, Maier HJ. Creep of Directionally Solidified Eutectics Ni/Ni3 Al–NbC under Thermal Cycling. Inorganic Materials: Applied Research. 2022 Aug;13(4):1099-1108. Epub 2022 Jul 19. doi: 10.1134/S2075113322040347
Svetlov, I. L. ; Epishin, A. I. ; Petrushin, N. V. et al. / Creep of Directionally Solidified Eutectics Ni/Ni3 Al–NbC under Thermal Cycling. in: Inorganic Materials: Applied Research. 2022 ; Jahrgang 13, Nr. 4. S. 1099-1108.
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abstract = "Abstract: A nickel-based eutectic alloy with a γ/γ '-NbC structure was directionally solidified with a planar front. The specimens were tested for creep under sawtooth thermal cycling in the temperature range from 600 to 1100°C. It has been established that the lifetime under the conditions of thermal cycling is about five times shorter than it is predicted by the linear damage accumulation rule on the basis of results of isothermal creep tests. Faster creep under thermal cycling is caused by the rapid coarsening of the γ/γ ' microstructure due to the periodic partial dissolution and reprecipitation of the γ ' phase in heating and cooling half-cycles.",
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AU - Svetlov, I. L.

AU - Epishin, A. I.

AU - Petrushin, N. V.

AU - Gerstein, G.

AU - Nolze, G.

AU - Maier, H. J.

N1 - Funding Information: Authors thank the Russian Foundation for Basic Research, project 18-508-12010, and the Germany Research Foundation DFG, project 449967666, for supporting this work.

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N2 - Abstract: A nickel-based eutectic alloy with a γ/γ '-NbC structure was directionally solidified with a planar front. The specimens were tested for creep under sawtooth thermal cycling in the temperature range from 600 to 1100°C. It has been established that the lifetime under the conditions of thermal cycling is about five times shorter than it is predicted by the linear damage accumulation rule on the basis of results of isothermal creep tests. Faster creep under thermal cycling is caused by the rapid coarsening of the γ/γ ' microstructure due to the periodic partial dissolution and reprecipitation of the γ ' phase in heating and cooling half-cycles.

AB - Abstract: A nickel-based eutectic alloy with a γ/γ '-NbC structure was directionally solidified with a planar front. The specimens were tested for creep under sawtooth thermal cycling in the temperature range from 600 to 1100°C. It has been established that the lifetime under the conditions of thermal cycling is about five times shorter than it is predicted by the linear damage accumulation rule on the basis of results of isothermal creep tests. Faster creep under thermal cycling is caused by the rapid coarsening of the γ/γ ' microstructure due to the periodic partial dissolution and reprecipitation of the γ ' phase in heating and cooling half-cycles.

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KW - creep under thermal cycling

KW - high temperature nickel-based eutectic alloys

KW - in-situ composites

KW - γ/γ ' matrix

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JO - Inorganic Materials: Applied Research

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