Effect of aluminum concentration on microstructure and evolution behavior of oxide layer on NiAlSiY coating at 500 ℃

Yao Wei; Shaoxian Zheng; Jibin Pu; Dapeng Zhou; Liping Wang; Wuming Guo; Guangyu He

doi:10.1016/j.corsci.2019.108400

Effect of aluminum concentration on microstructure and evolution behavior of oxide layer on NiAlSiY coating at 500 ℃

Yao Wei
, Shaoxian Zheng
, Jibin Pu
, Dapeng Zhou
, Liping Wang
, Wuming Guo
, Guangyu He

Lanzhou Jiaotong University
CAS - Ningbo Institute of Material Technology and Engineering
Air Force Engineering University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

11 引用（Scopus）

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Three types of NiAlSiY coatings with different aluminum concentration were prepared. The isothermal oxidation behavior and mechanism of coatings at 500 °C were studied. The results indicate a multilayer oxide layer composed of NiO outer layer and Al₂O₃ inner layer is formed on the surface. The diffusion of aluminum in the coating and the phase transition from β-NiAl to γ'-Ni₃Al promote the formation of Al₂O₃. Silicon plays an important role in the diffusion of aluminum by refining grains. When the aluminum is 21 wt.%, a dense Al₂O₃ layer can be formed on the NiAlSiY coating after oxidation for 30 h.

源语言	英语
文章编号	108400
期刊	Corrosion Science
卷	165
DOI	https://doi.org/10.1016/j.corsci.2019.108400
出版状态	已出版 - 1 4月 2020
已对外发布	是

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@article{b1feb59c54774d8aa8a2accb0426e625,

title = "Effect of aluminum concentration on microstructure and evolution behavior of oxide layer on NiAlSiY coating at 500 ℃",

abstract = "Three types of NiAlSiY coatings with different aluminum concentration were prepared. The isothermal oxidation behavior and mechanism of coatings at 500 °C were studied. The results indicate a multilayer oxide layer composed of NiO outer layer and Al2O3 inner layer is formed on the surface. The diffusion of aluminum in the coating and the phase transition from β-NiAl to γ'-Ni3Al promote the formation of Al2O3. Silicon plays an important role in the diffusion of aluminum by refining grains. When the aluminum is 21 wt.\%, a dense Al2O3 layer can be formed on the NiAlSiY coating after oxidation for 30 h.",

keywords = "A: NiSiAlY coatings, A: Superalloy, B: TEM, C: Oxidation",

author = "Yao Wei and Shaoxian Zheng and Jibin Pu and Dapeng Zhou and Liping Wang and Wuming Guo and Guangyu He",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = apr,

day = "1",

doi = "10.1016/j.corsci.2019.108400",

language = "英语",

volume = "165",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of aluminum concentration on microstructure and evolution behavior of oxide layer on NiAlSiY coating at 500 ℃

AU - Wei, Yao

AU - Zheng, Shaoxian

AU - Pu, Jibin

AU - Zhou, Dapeng

AU - Wang, Liping

AU - Guo, Wuming

AU - He, Guangyu

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Three types of NiAlSiY coatings with different aluminum concentration were prepared. The isothermal oxidation behavior and mechanism of coatings at 500 °C were studied. The results indicate a multilayer oxide layer composed of NiO outer layer and Al2O3 inner layer is formed on the surface. The diffusion of aluminum in the coating and the phase transition from β-NiAl to γ'-Ni3Al promote the formation of Al2O3. Silicon plays an important role in the diffusion of aluminum by refining grains. When the aluminum is 21 wt.%, a dense Al2O3 layer can be formed on the NiAlSiY coating after oxidation for 30 h.

AB - Three types of NiAlSiY coatings with different aluminum concentration were prepared. The isothermal oxidation behavior and mechanism of coatings at 500 °C were studied. The results indicate a multilayer oxide layer composed of NiO outer layer and Al2O3 inner layer is formed on the surface. The diffusion of aluminum in the coating and the phase transition from β-NiAl to γ'-Ni3Al promote the formation of Al2O3. Silicon plays an important role in the diffusion of aluminum by refining grains. When the aluminum is 21 wt.%, a dense Al2O3 layer can be formed on the NiAlSiY coating after oxidation for 30 h.

KW - A: NiSiAlY coatings

KW - A: Superalloy

KW - B: TEM

KW - C: Oxidation

UR - https://www.scopus.com/pages/publications/85077312630

U2 - 10.1016/j.corsci.2019.108400

DO - 10.1016/j.corsci.2019.108400

M3 - 文章

AN - SCOPUS:85077312630

SN - 0010-938X

VL - 165

JO - Corrosion Science

JF - Corrosion Science

M1 - 108400

ER -

Effect of aluminum concentration on microstructure and evolution behavior of oxide layer on NiAlSiY coating at 500 ℃

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Effect of aluminum concentration on microstructure and evolution behavior of oxide layer on NiAlSiY coating at 500 ℃