Thermal barrier coating bonded by (Al2O3-Y2O3)/(Y2O3-stabilized ZrO2) laminated composite coating prepared by two-step cyclic spray pyrolysis

Junqi Yao; Yedong He; Deren Wang; Hui Peng; Hongbo Guo; Shengkai Gong

doi:10.1016/j.corsci.2013.10.006

Thermal barrier coating bonded by (Al₂O₃-Y₂O₃)/(Y₂O₃-stabilized ZrO₂) laminated composite coating prepared by two-step cyclic spray pyrolysis

Junqi Yao
, Yedong He^*
, Deren Wang
, Hui Peng
, Hongbo Guo
, Shengkai Gong

^*Corresponding author for this work

School of Materials Science and Engineering

University of Science and Technology Beijing

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

29 Scopus citations

Abstract

Thermal barrier coating bonded by (Al₂O₃-Y₂O₃)/(Y₂O₃-stabilized ZrO₂) (YSZ) laminated coating has been developed on Ni-based superalloy by two-step cyclic pyrolysis. It is demonstrated, from cyclic oxidation tests at 1100°C, that YSZ top coat and alloy substrate can be bonded together effectively by the (Al₂O₃-Y₂O₃)/YSZ laminated coating, showing good resistance to oxidation, cracking, spallation and buckling. These beneficial effects can be attributed to the sealing effect of the designed multi-sealed compact bond coat with α-Al₂O₃ layers, the decrease of thermal stresses, the increase of fracture toughness in such bond coat and no interdiffusion between the substrate and bond coat.

Original language	English
Pages (from-to)	37-45
Number of pages	9
Journal	Corrosion Science
Volume	80
DOIs	https://doi.org/10.1016/j.corsci.2013.10.006
State	Published - Mar 2014

Keywords

A. Superalloys
B. Thermal cycling
C. Oxidation
C. Oxide coatings
C. Selective oxidation

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10.1016/j.corsci.2013.10.006

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title = "Thermal barrier coating bonded by (Al2O3-Y2O3)/(Y2O3-stabilized ZrO2) laminated composite coating prepared by two-step cyclic spray pyrolysis",

abstract = "Thermal barrier coating bonded by (Al2O3-Y2O3)/(Y2O3-stabilized ZrO2) (YSZ) laminated coating has been developed on Ni-based superalloy by two-step cyclic pyrolysis. It is demonstrated, from cyclic oxidation tests at 1100°C, that YSZ top coat and alloy substrate can be bonded together effectively by the (Al2O3-Y2O3)/YSZ laminated coating, showing good resistance to oxidation, cracking, spallation and buckling. These beneficial effects can be attributed to the sealing effect of the designed multi-sealed compact bond coat with α-Al2O3 layers, the decrease of thermal stresses, the increase of fracture toughness in such bond coat and no interdiffusion between the substrate and bond coat.",

keywords = "A. Superalloys, B. Thermal cycling, C. Oxidation, C. Oxide coatings, C. Selective oxidation",

author = "Junqi Yao and Yedong He and Deren Wang and Hui Peng and Hongbo Guo and Shengkai Gong",

year = "2014",

month = mar,

doi = "10.1016/j.corsci.2013.10.006",

language = "英语",

volume = "80",

pages = "37--45",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Thermal barrier coating bonded by (Al2O3-Y2O3)/(Y2O3-stabilized ZrO2) laminated composite coating prepared by two-step cyclic spray pyrolysis

AU - Yao, Junqi

AU - He, Yedong

AU - Wang, Deren

AU - Peng, Hui

AU - Guo, Hongbo

AU - Gong, Shengkai

PY - 2014/3

Y1 - 2014/3

N2 - Thermal barrier coating bonded by (Al2O3-Y2O3)/(Y2O3-stabilized ZrO2) (YSZ) laminated coating has been developed on Ni-based superalloy by two-step cyclic pyrolysis. It is demonstrated, from cyclic oxidation tests at 1100°C, that YSZ top coat and alloy substrate can be bonded together effectively by the (Al2O3-Y2O3)/YSZ laminated coating, showing good resistance to oxidation, cracking, spallation and buckling. These beneficial effects can be attributed to the sealing effect of the designed multi-sealed compact bond coat with α-Al2O3 layers, the decrease of thermal stresses, the increase of fracture toughness in such bond coat and no interdiffusion between the substrate and bond coat.

AB - Thermal barrier coating bonded by (Al2O3-Y2O3)/(Y2O3-stabilized ZrO2) (YSZ) laminated coating has been developed on Ni-based superalloy by two-step cyclic pyrolysis. It is demonstrated, from cyclic oxidation tests at 1100°C, that YSZ top coat and alloy substrate can be bonded together effectively by the (Al2O3-Y2O3)/YSZ laminated coating, showing good resistance to oxidation, cracking, spallation and buckling. These beneficial effects can be attributed to the sealing effect of the designed multi-sealed compact bond coat with α-Al2O3 layers, the decrease of thermal stresses, the increase of fracture toughness in such bond coat and no interdiffusion between the substrate and bond coat.

KW - A. Superalloys

KW - B. Thermal cycling

KW - C. Oxidation

KW - C. Oxide coatings

KW - C. Selective oxidation

UR - https://www.scopus.com/pages/publications/84891626370

U2 - 10.1016/j.corsci.2013.10.006

DO - 10.1016/j.corsci.2013.10.006

M3 - 文章

AN - SCOPUS:84891626370

SN - 0010-938X

VL - 80

SP - 37

EP - 45

JO - Corrosion Science

JF - Corrosion Science

ER -

Thermal barrier coating bonded by (Al₂O₃-Y₂O₃)/(Y₂O₃-stabilized ZrO₂) laminated composite coating prepared by two-step cyclic spray pyrolysis

Abstract

Keywords

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