High temperature oxidation behavior and mechanism of Al0.3CuCrFeNi2 high-entropy alloy with a coherent γ/γ' microstructure

Guoqiang Huang; Jie Wu; Rui Yuan; Yingxi Li; Fanqiang Meng; Penghui Lei; Chenyang Lu; Fujun Cao; Yifu Shen

doi:10.1016/j.corsci.2021.109984

High temperature oxidation behavior and mechanism of Al_0.3CuCrFeNi₂ high-entropy alloy with a coherent γ/γ' microstructure

Guoqiang Huang
, Jie Wu
, Rui Yuan
, Yingxi Li
, Fanqiang Meng
, Penghui Lei
, Chenyang Lu
, Fujun Cao
, Yifu Shen

能源与动力工程学院

Sun Yat-Sen University
Nanjing University of Posts and Telecommunications
Xi'an Jiaotong University
Nanjing University of Aeronautics and Astronautics

科研成果: 期刊稿件 › 文章 › 同行评审

31 引用（Scopus）

摘要

In this study, the oxidation behavior of the Al_0.3CuCrFeNi₂ HEA with a typical coherent γ/γ' microstructure was systematically investigated by the isothermal oxidation tests at 600, 750 and 900 ℃ in air. The results show that the oxidation kinetics of the Al_0.3CuCrFeNi₂ HEA follow the parabolic law at all three temperatures. As the oxidation temperature increases, the surface segregation of Cu near the grain boundary occurs, leading to different oxidation behavior in the intragranular regions and near the grain boundary regions. The associated formation mechanisms of the oxide scales are proposed and discussed in detail.

源语言	英语
文章编号	109984
期刊	Corrosion Science
卷	195
DOI	https://doi.org/10.1016/j.corsci.2021.109984
出版状态	已出版 - 2月 2022

访问文件

10.1016/j.corsci.2021.109984

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{3a40edb0a7ed41bb94d57a79441ff9a1,

title = "High temperature oxidation behavior and mechanism of Al0.3CuCrFeNi2 high-entropy alloy with a coherent γ/γ' microstructure",

abstract = "In this study, the oxidation behavior of the Al0.3CuCrFeNi2 HEA with a typical coherent γ/γ' microstructure was systematically investigated by the isothermal oxidation tests at 600, 750 and 900 ℃ in air. The results show that the oxidation kinetics of the Al0.3CuCrFeNi2 HEA follow the parabolic law at all three temperatures. As the oxidation temperature increases, the surface segregation of Cu near the grain boundary occurs, leading to different oxidation behavior in the intragranular regions and near the grain boundary regions. The associated formation mechanisms of the oxide scales are proposed and discussed in detail.",

keywords = "Formation mechanism, High-entropy Alloy, Oxidation, γ/γ' microstructure",

author = "Guoqiang Huang and Jie Wu and Rui Yuan and Yingxi Li and Fanqiang Meng and Penghui Lei and Chenyang Lu and Fujun Cao and Yifu Shen",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2022",

month = feb,

doi = "10.1016/j.corsci.2021.109984",

language = "英语",

volume = "195",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - High temperature oxidation behavior and mechanism of Al0.3CuCrFeNi2 high-entropy alloy with a coherent γ/γ' microstructure

AU - Huang, Guoqiang

AU - Wu, Jie

AU - Yuan, Rui

AU - Li, Yingxi

AU - Meng, Fanqiang

AU - Lei, Penghui

AU - Lu, Chenyang

AU - Cao, Fujun

AU - Shen, Yifu

PY - 2022/2

Y1 - 2022/2

N2 - In this study, the oxidation behavior of the Al0.3CuCrFeNi2 HEA with a typical coherent γ/γ' microstructure was systematically investigated by the isothermal oxidation tests at 600, 750 and 900 ℃ in air. The results show that the oxidation kinetics of the Al0.3CuCrFeNi2 HEA follow the parabolic law at all three temperatures. As the oxidation temperature increases, the surface segregation of Cu near the grain boundary occurs, leading to different oxidation behavior in the intragranular regions and near the grain boundary regions. The associated formation mechanisms of the oxide scales are proposed and discussed in detail.

AB - In this study, the oxidation behavior of the Al0.3CuCrFeNi2 HEA with a typical coherent γ/γ' microstructure was systematically investigated by the isothermal oxidation tests at 600, 750 and 900 ℃ in air. The results show that the oxidation kinetics of the Al0.3CuCrFeNi2 HEA follow the parabolic law at all three temperatures. As the oxidation temperature increases, the surface segregation of Cu near the grain boundary occurs, leading to different oxidation behavior in the intragranular regions and near the grain boundary regions. The associated formation mechanisms of the oxide scales are proposed and discussed in detail.

KW - Formation mechanism

KW - High-entropy Alloy

KW - Oxidation

KW - γ/γ' microstructure

UR - https://www.scopus.com/pages/publications/85120608736

U2 - 10.1016/j.corsci.2021.109984

DO - 10.1016/j.corsci.2021.109984

M3 - 文章

AN - SCOPUS:85120608736

SN - 0010-938X

VL - 195

JO - Corrosion Science

JF - Corrosion Science

M1 - 109984

ER -

High temperature oxidation behavior and mechanism of Al0.3CuCrFeNi2 high-entropy alloy with a coherent γ/γ' microstructure

摘要

访问文件

其它文件与链接

学术指纹

引用此

High temperature oxidation behavior and mechanism of Al_0.3CuCrFeNi₂ high-entropy alloy with a coherent γ/γ' microstructure