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
N1 - Publisher Copyright:
© 2025 Elsevier B.V.
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 -