High-temperature oxidation and hot corrosion behavior of CoMoCrSi coating by APS and HVOF spraying

Zhiqiang Yang; Daoxin Liu; Yanjie Liu; Kai Zhou; Mengyao Li; Junnan Wu; Kaifa Fan; Xiaohua Zhang

doi:10.1016/j.surfcoat.2025.132136

High-temperature oxidation and hot corrosion behavior of CoMoCrSi coating by APS and HVOF spraying

Zhiqiang Yang, Daoxin Liu, Yanjie Liu, Kai Zhou, Mengyao Li, Junnan Wu, Kaifa Fan, Xiaohua Zhang

Northwestern Polytechnical University Xian

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

Abstract

High-temperature oxidation behavior and hot corrosion failure mechanism of CoMoCrSi coatings (T800) prepared by atmospheric plasma spraying (APS) and high-velocity oxy-fuel spraying (HVOF) were investigated. The HVOF-T800 coating exhibited superior oxidation resistance during the oxidation. In the hot corrosion, the APS-T800 coating developed an external layer of CoMoO₄ and an internal layer of CoCr₂O₄, ultimately leading to internal delamination failure. Nevertheless, the HVOF-T800 coating formed an outer layer of Cr₂O₃, an intermediate layer of CoCr₂O₄, and an inner blocking layer of SiO₂, resulting in interfacial delamination failure as the final failure mode, exhibited greater resistance to hot corrosion medium intrusion.

Original language	English
Article number	132136
Journal	Surface and Coatings Technology
Volume	507
DOIs	https://doi.org/10.1016/j.surfcoat.2025.132136
State	Published - 1 Jul 2025

Keywords

Atmospheric plasma spraying (APS)
CoMoCrSi coating
Failure mechanism
High-temperature oxidation
High-velocity oxygen-fuel (HVOF)
Hot corrosion

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10.1016/j.surfcoat.2025.132136

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title = "High-temperature oxidation and hot corrosion behavior of CoMoCrSi coating by APS and HVOF spraying",

abstract = "High-temperature oxidation behavior and hot corrosion failure mechanism of CoMoCrSi coatings (T800) prepared by atmospheric plasma spraying (APS) and high-velocity oxy-fuel spraying (HVOF) were investigated. The HVOF-T800 coating exhibited superior oxidation resistance during the oxidation. In the hot corrosion, the APS-T800 coating developed an external layer of CoMoO4 and an internal layer of CoCr2O4, ultimately leading to internal delamination failure. Nevertheless, the HVOF-T800 coating formed an outer layer of Cr2O3, an intermediate layer of CoCr2O4, and an inner blocking layer of SiO2, resulting in interfacial delamination failure as the final failure mode, exhibited greater resistance to hot corrosion medium intrusion.",

keywords = "Atmospheric plasma spraying (APS), CoMoCrSi coating, Failure mechanism, High-temperature oxidation, High-velocity oxygen-fuel (HVOF), Hot corrosion",

author = "Zhiqiang Yang and Daoxin Liu and Yanjie Liu and Kai Zhou and Mengyao Li and Junnan Wu and Kaifa Fan and Xiaohua Zhang",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2025",

month = jul,

day = "1",

doi = "10.1016/j.surfcoat.2025.132136",

language = "英语",

volume = "507",

journal = "Surface and Coatings Technology",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - High-temperature oxidation and hot corrosion behavior of CoMoCrSi coating by APS and HVOF spraying

AU - Yang, Zhiqiang

AU - Liu, Daoxin

AU - Liu, Yanjie

AU - Zhou, Kai

AU - Li, Mengyao

AU - Wu, Junnan

AU - Fan, Kaifa

AU - Zhang, Xiaohua

PY - 2025/7/1

Y1 - 2025/7/1

N2 - High-temperature oxidation behavior and hot corrosion failure mechanism of CoMoCrSi coatings (T800) prepared by atmospheric plasma spraying (APS) and high-velocity oxy-fuel spraying (HVOF) were investigated. The HVOF-T800 coating exhibited superior oxidation resistance during the oxidation. In the hot corrosion, the APS-T800 coating developed an external layer of CoMoO4 and an internal layer of CoCr2O4, ultimately leading to internal delamination failure. Nevertheless, the HVOF-T800 coating formed an outer layer of Cr2O3, an intermediate layer of CoCr2O4, and an inner blocking layer of SiO2, resulting in interfacial delamination failure as the final failure mode, exhibited greater resistance to hot corrosion medium intrusion.

AB - High-temperature oxidation behavior and hot corrosion failure mechanism of CoMoCrSi coatings (T800) prepared by atmospheric plasma spraying (APS) and high-velocity oxy-fuel spraying (HVOF) were investigated. The HVOF-T800 coating exhibited superior oxidation resistance during the oxidation. In the hot corrosion, the APS-T800 coating developed an external layer of CoMoO4 and an internal layer of CoCr2O4, ultimately leading to internal delamination failure. Nevertheless, the HVOF-T800 coating formed an outer layer of Cr2O3, an intermediate layer of CoCr2O4, and an inner blocking layer of SiO2, resulting in interfacial delamination failure as the final failure mode, exhibited greater resistance to hot corrosion medium intrusion.

KW - Atmospheric plasma spraying (APS)

KW - CoMoCrSi coating

KW - Failure mechanism

KW - High-temperature oxidation

KW - High-velocity oxygen-fuel (HVOF)

KW - Hot corrosion

UR - http://www.scopus.com/inward/record.url?scp=105002339103&partnerID=8YFLogxK

U2 - 10.1016/j.surfcoat.2025.132136

DO - 10.1016/j.surfcoat.2025.132136

M3 - 文章

AN - SCOPUS:105002339103

SN - 0257-8972

VL - 507

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

M1 - 132136

ER -

High-temperature oxidation and hot corrosion behavior of CoMoCrSi coating by APS and HVOF spraying

Abstract

Keywords

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