High-temperature performance of Pt-modified Ni-20Co-28Cr-10Al-0.5Y coating: Formation mechanism of Pt-rich overlayer and its effect on thermally grown oxide failure

Chuntang Yu; Wanqi Pu; Shuai Li; Zebin Bao; Renju Cheng; Chengyang Jiang; Zhengliang Liu; Wei Zhang; Lei Zhang; Suibo Zhao; Hanqing Xie; Shenglong Zhu; Fuhui Wang

doi:10.1016/j.surfcoat.2023.129422

High-temperature performance of Pt-modified Ni-20Co-28Cr-10Al-0.5Y coating: Formation mechanism of Pt-rich overlayer and its effect on thermally grown oxide failure

Chuntang Yu
, Wanqi Pu
, Shuai Li
, Zebin Bao^*
, Renju Cheng
, Chengyang Jiang
, Zhengliang Liu
, Wei Zhang
, Lei Zhang
, Suibo Zhao
, Hanqing Xie
, Shenglong Zhu
, Fuhui Wang

^*Corresponding author for this work

Chongqing Institute of Technology
CAS - Institute of Metal Research
Xixi Octagon City
Songshan Lake Materials Laboratory
Northeastern University China

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

11 Scopus citations

Abstract

A Pt-modified NiCoCrAlY coating was prepared on N5 via arc ion plating (AIP), Pt-electroplating, and subsequent vacuum annealing treatments. To perform a comparison between the properties of the modified and normal NiCoCrAlY coatings, the isothermal oxidation performances of the Pt-free and Pt-modified NiCoCrAlY coatings were evaluated at 1100 °C in static air. The results indicate that the Pt-rich overlayer on the Pt-modified NiCoCrAlY coatings exhibited superior oxidation resistance, and the adherent, thinner scale of α-Al₂O₃ inhibited the formation of detrimental (Ni, Co)(Cr, Al)₂O₄ spinel oxide. Furthermore, the addition of Pt effectively delayed the Al₂O₃ oxide phase transformation from θ to α in the early stage and markedly decreased the level of residual stress. The mechanism of forming the Pt-rich overlayer and its effect on thermally grown oxide (TGO) failure during high-temperature oxidation are discussed in detail, and the effect of Pt on improving the TGO growth, stress evolution, and spallation resistance are highlighted.

Original language	English
Article number	129422
Journal	Surface and Coatings Technology
Volume	461
DOIs	https://doi.org/10.1016/j.surfcoat.2023.129422
State	Published - 25 May 2023
Externally published	Yes

Keywords

Microstructure evolution
NiCoCrAlY
Pt-modification
Thermally grown oxide (TGO)

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10.1016/j.surfcoat.2023.129422

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Yu, C., Pu, W., Li, S., Bao, Z., Cheng, R., Jiang, C., Liu, Z., Zhang, W., Zhang, L., Zhao, S., Xie, H., Zhu, S., & Wang, F. (2023). High-temperature performance of Pt-modified Ni-20Co-28Cr-10Al-0.5Y coating: Formation mechanism of Pt-rich overlayer and its effect on thermally grown oxide failure. Surface and Coatings Technology, 461, Article 129422. https://doi.org/10.1016/j.surfcoat.2023.129422

@article{38b4d7ba6069473e9ae6116799d35324,

title = "High-temperature performance of Pt-modified Ni-20Co-28Cr-10Al-0.5Y coating: Formation mechanism of Pt-rich overlayer and its effect on thermally grown oxide failure",

abstract = "A Pt-modified NiCoCrAlY coating was prepared on N5 via arc ion plating (AIP), Pt-electroplating, and subsequent vacuum annealing treatments. To perform a comparison between the properties of the modified and normal NiCoCrAlY coatings, the isothermal oxidation performances of the Pt-free and Pt-modified NiCoCrAlY coatings were evaluated at 1100 °C in static air. The results indicate that the Pt-rich overlayer on the Pt-modified NiCoCrAlY coatings exhibited superior oxidation resistance, and the adherent, thinner scale of α-Al2O3 inhibited the formation of detrimental (Ni, Co)(Cr, Al)2O4 spinel oxide. Furthermore, the addition of Pt effectively delayed the Al2O3 oxide phase transformation from θ to α in the early stage and markedly decreased the level of residual stress. The mechanism of forming the Pt-rich overlayer and its effect on thermally grown oxide (TGO) failure during high-temperature oxidation are discussed in detail, and the effect of Pt on improving the TGO growth, stress evolution, and spallation resistance are highlighted.",

keywords = "Microstructure evolution, NiCoCrAlY, Pt-modification, Thermally grown oxide (TGO)",

author = "Chuntang Yu and Wanqi Pu and Shuai Li and Zebin Bao and Renju Cheng and Chengyang Jiang and Zhengliang Liu and Wei Zhang and Lei Zhang and Suibo Zhao and Hanqing Xie and Shenglong Zhu and Fuhui Wang",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = may,

day = "25",

doi = "10.1016/j.surfcoat.2023.129422",

language = "英语",

volume = "461",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier B.V.",

}

Yu, C, Pu, W, Li, S, Bao, Z, Cheng, R, Jiang, C, Liu, Z, Zhang, W, Zhang, L, Zhao, S, Xie, H, Zhu, S & Wang, F 2023, 'High-temperature performance of Pt-modified Ni-20Co-28Cr-10Al-0.5Y coating: Formation mechanism of Pt-rich overlayer and its effect on thermally grown oxide failure', Surface and Coatings Technology, vol. 461, 129422. https://doi.org/10.1016/j.surfcoat.2023.129422

TY - JOUR

T1 - High-temperature performance of Pt-modified Ni-20Co-28Cr-10Al-0.5Y coating

T2 - Formation mechanism of Pt-rich overlayer and its effect on thermally grown oxide failure

AU - Yu, Chuntang

AU - Pu, Wanqi

AU - Li, Shuai

AU - Bao, Zebin

AU - Cheng, Renju

AU - Jiang, Chengyang

AU - Liu, Zhengliang

AU - Zhang, Wei

AU - Zhang, Lei

AU - Zhao, Suibo

AU - Xie, Hanqing

AU - Zhu, Shenglong

AU - Wang, Fuhui

PY - 2023/5/25

Y1 - 2023/5/25

N2 - A Pt-modified NiCoCrAlY coating was prepared on N5 via arc ion plating (AIP), Pt-electroplating, and subsequent vacuum annealing treatments. To perform a comparison between the properties of the modified and normal NiCoCrAlY coatings, the isothermal oxidation performances of the Pt-free and Pt-modified NiCoCrAlY coatings were evaluated at 1100 °C in static air. The results indicate that the Pt-rich overlayer on the Pt-modified NiCoCrAlY coatings exhibited superior oxidation resistance, and the adherent, thinner scale of α-Al2O3 inhibited the formation of detrimental (Ni, Co)(Cr, Al)2O4 spinel oxide. Furthermore, the addition of Pt effectively delayed the Al2O3 oxide phase transformation from θ to α in the early stage and markedly decreased the level of residual stress. The mechanism of forming the Pt-rich overlayer and its effect on thermally grown oxide (TGO) failure during high-temperature oxidation are discussed in detail, and the effect of Pt on improving the TGO growth, stress evolution, and spallation resistance are highlighted.

AB - A Pt-modified NiCoCrAlY coating was prepared on N5 via arc ion plating (AIP), Pt-electroplating, and subsequent vacuum annealing treatments. To perform a comparison between the properties of the modified and normal NiCoCrAlY coatings, the isothermal oxidation performances of the Pt-free and Pt-modified NiCoCrAlY coatings were evaluated at 1100 °C in static air. The results indicate that the Pt-rich overlayer on the Pt-modified NiCoCrAlY coatings exhibited superior oxidation resistance, and the adherent, thinner scale of α-Al2O3 inhibited the formation of detrimental (Ni, Co)(Cr, Al)2O4 spinel oxide. Furthermore, the addition of Pt effectively delayed the Al2O3 oxide phase transformation from θ to α in the early stage and markedly decreased the level of residual stress. The mechanism of forming the Pt-rich overlayer and its effect on thermally grown oxide (TGO) failure during high-temperature oxidation are discussed in detail, and the effect of Pt on improving the TGO growth, stress evolution, and spallation resistance are highlighted.

KW - Microstructure evolution

KW - NiCoCrAlY

KW - Pt-modification

KW - Thermally grown oxide (TGO)

UR - https://www.scopus.com/pages/publications/85151402824

U2 - 10.1016/j.surfcoat.2023.129422

DO - 10.1016/j.surfcoat.2023.129422

M3 - 文章

AN - SCOPUS:85151402824

SN - 0257-8972

VL - 461

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

M1 - 129422

ER -

High-temperature performance of Pt-modified Ni-20Co-28Cr-10Al-0.5Y coating: Formation mechanism of Pt-rich overlayer and its effect on thermally grown oxide failure

Abstract

Keywords

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