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

^*Corresponding author for this work

Graduate School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (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

ASJC Scopus subject areas

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

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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, 2018, p. C524-C531.

Research output: Contribution to journal › Article › peer-review

@article{09e0131aeb8c4fb5903e0830d954997d,

title = "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",

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.",

author = "Hsu, {Wei Lin} and Hideyuki Murakami and Hiroshi Araki and Makoto Watanabe and Seiji Kuroda and Yeh, {An Chou} and Yeh, {Jien Wei}",

note = "Funding Information: The authors are grateful to Dr. T.Y. Yeh from Industrial Technology Research Institute for preparing atomized HEA powder. Authors appreciate supports from Research Center for Structural Materials-National Institute for Materials Science. Authors would like to thank funding supports from High Entropy Materials Center-National Tsing Hua University (107-3017-F-007-003) and projects 106-2923-E-007-002-MY2 and 106-2218-E-007-019. Publisher Copyright: {\textcopyright} 2018 The Electrochemical Society.",

year = "2018",

doi = "10.1149/2.1191809jes",

language = "English",

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T1 - 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

AU - Hsu, Wei Lin

AU - Murakami, Hideyuki

AU - Araki, Hiroshi

AU - Watanabe, Makoto

AU - Kuroda, Seiji

AU - Yeh, An Chou

AU - Yeh, Jien Wei

N1 - Funding Information: The authors are grateful to Dr. T.Y. Yeh from Industrial Technology Research Institute for preparing atomized HEA powder. Authors appreciate supports from Research Center for Structural Materials-National Institute for Materials Science. Authors would like to thank funding supports from High Entropy Materials Center-National Tsing Hua University (107-3017-F-007-003) and projects 106-2923-E-007-002-MY2 and 106-2218-E-007-019. Publisher Copyright: © 2018 The Electrochemical Society.

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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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