A study of NiCo0.6Fe0.2CrxSiAlTiy high-entropy alloys for applications as a high-temperature protective coating and a bond coat in thermal barrier coating systems

Wei Lin Hsu; Hideyuki Murakami; Hiroshi Araki; Makoto Watanabe; Seiji Kuroda; An Chou Yeh; Jien Wei Yeh

doi:10.1149/2.1191809jes

A study of NiCo_0.6Fe_0.2Cr_xSiAlTi_y high-entropy alloys for applications as a high-temperature protective coating and a bond coat in thermal barrier coating systems

Wei Lin Hsu, Hideyuki Murakami, Hiroshi Araki, Makoto Watanabe, Seiji Kuroda, An Chou Yeh, Jien Wei Yeh

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

Atmospheric plasma spraying, high-velocity oxy-fuel spraying and warm spraying processes were used to prepare NiCo_0.6Fe_0.2Cr_1.5SiAlTi_0.2 and NiCo_0.6Fe_0.2Cr_1.3SiAl high-entropy alloy coatings for the investigation of their high temperature properties. The best-performer, the warm-sprayed high-entropy alloy coating was then applied to a thermal barrier coating system as a bond coat over an Incoloy 800H substrate. Experimental results show that the investigated high-entropy alloy coatings have high hardness, excellent wear resistance and good oxidation resistance at 1100^◦C that makes them promising overlay coatings for elevated temperature applications.

Original language	English
Pages (from-to)	C524-C531
Journal	Journal of the Electrochemical Society
Volume	165
Issue number	9
DOIs	https://doi.org/10.1149/2.1191809jes
Publication status	Published - 2018 Jan 1

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ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Condensed Matter Physics
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

Cite this

Hsu, W. L., Murakami, H., Araki, H., Watanabe, M., Kuroda, S., Yeh, A. C., & Yeh, J. W. (2018). A study of NiCo_0.6Fe_0.2Cr_xSiAlTi_y high-entropy alloys for applications as a high-temperature protective coating and a bond coat in thermal barrier coating systems. Journal of the Electrochemical Society, 165(9), C524-C531. https://doi.org/10.1149/2.1191809jes

A study of NiCo_0.6Fe_0.2Cr_xSiAlTi_y high-entropy alloys for applications as a high-temperature protective coating and a bond coat in thermal barrier coating systems. / Hsu, Wei Lin; Murakami, Hideyuki; Araki, Hiroshi; Watanabe, Makoto; Kuroda, Seiji; Yeh, An Chou; Yeh, Jien Wei.

In: Journal of the Electrochemical Society, Vol. 165, No. 9, 01.01.2018, p. C524-C531.

Research output: Contribution to journal › Article

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abstract = "Atmospheric plasma spraying, high-velocity oxy-fuel spraying and warm spraying processes were used to prepare NiCo0.6Fe0.2Cr1.5SiAlTi0.2 and NiCo0.6Fe0.2Cr1.3SiAl high-entropy alloy coatings for the investigation of their high temperature properties. The best-performer, the warm-sprayed high-entropy alloy coating was then applied to a thermal barrier coating system as a bond coat over an Incoloy 800H substrate. Experimental results show that the investigated high-entropy alloy coatings have high hardness, excellent wear resistance and good oxidation resistance at 1100◦C that makes them promising overlay coatings for elevated temperature applications.",

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10.1149/2.1191809jes