Non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat

Bang Yan Zhang; Guan Jun Yang; Cheng Xin Li; Chang Jiu Li

doi:10.1016/j.apsusc.2017.02.123

Non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat

School of Materials Science and Engineering

Xi'an Jiaotong University

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

88 Scopus citations

Abstract

The non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat was investigated. To qualitatively explain the abnormal growth phenomenon of thermally grown oxides (TGO), the changes that occurred to their microstructure during the oxidation process were studied. Based on these observations, a modified model was developed to understand and quantitatively predict the non-parabolic oxidation and growth kinetics of TGO. This modified model, which fits well with experimental results, provides a novel method to quantitatively predict the long-term growth behaviour of TGO, and thereby benefits the development of long-life and highly reliable thermal barrier coatings.

Original language	English
Pages (from-to)	99-109
Number of pages	11
Journal	Applied Surface Science
Volume	406
DOIs	https://doi.org/10.1016/j.apsusc.2017.02.123
State	Published - 1 Jun 2017

Keywords

Bond coat
Grain structure
Isothermal oxidation kinetics
Oxygen diffusion rate
Thermally grown oxide

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10.1016/j.apsusc.2017.02.123

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title = "Non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat",

abstract = "The non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat was investigated. To qualitatively explain the abnormal growth phenomenon of thermally grown oxides (TGO), the changes that occurred to their microstructure during the oxidation process were studied. Based on these observations, a modified model was developed to understand and quantitatively predict the non-parabolic oxidation and growth kinetics of TGO. This modified model, which fits well with experimental results, provides a novel method to quantitatively predict the long-term growth behaviour of TGO, and thereby benefits the development of long-life and highly reliable thermal barrier coatings.",

keywords = "Bond coat, Grain structure, Isothermal oxidation kinetics, Oxygen diffusion rate, Thermally grown oxide",

author = "Zhang, \{Bang Yan\} and Yang, \{Guan Jun\} and Li, \{Cheng Xin\} and Li, \{Chang Jiu\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = jun,

day = "1",

doi = "10.1016/j.apsusc.2017.02.123",

language = "英语",

volume = "406",

pages = "99--109",

journal = "Applied Surface Science",

issn = "0169-4332",

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TY - JOUR

T1 - Non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat

AU - Zhang, Bang Yan

AU - Yang, Guan Jun

AU - Li, Cheng Xin

AU - Li, Chang Jiu

PY - 2017/6/1

Y1 - 2017/6/1

N2 - The non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat was investigated. To qualitatively explain the abnormal growth phenomenon of thermally grown oxides (TGO), the changes that occurred to their microstructure during the oxidation process were studied. Based on these observations, a modified model was developed to understand and quantitatively predict the non-parabolic oxidation and growth kinetics of TGO. This modified model, which fits well with experimental results, provides a novel method to quantitatively predict the long-term growth behaviour of TGO, and thereby benefits the development of long-life and highly reliable thermal barrier coatings.

AB - The non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat was investigated. To qualitatively explain the abnormal growth phenomenon of thermally grown oxides (TGO), the changes that occurred to their microstructure during the oxidation process were studied. Based on these observations, a modified model was developed to understand and quantitatively predict the non-parabolic oxidation and growth kinetics of TGO. This modified model, which fits well with experimental results, provides a novel method to quantitatively predict the long-term growth behaviour of TGO, and thereby benefits the development of long-life and highly reliable thermal barrier coatings.

KW - Bond coat

KW - Grain structure

KW - Isothermal oxidation kinetics

KW - Oxygen diffusion rate

KW - Thermally grown oxide

UR - https://www.scopus.com/pages/publications/85013798743

U2 - 10.1016/j.apsusc.2017.02.123

DO - 10.1016/j.apsusc.2017.02.123

M3 - 文章

AN - SCOPUS:85013798743

SN - 0169-4332

VL - 406

SP - 99

EP - 109

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Non-parabolic isothermal oxidation kinetics of low pressure plasma sprayed MCrAlY bond coat

Abstract

Keywords

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