Oxidation performance of aluminide coating on Inconel 783 bolts for ultra-supercritical steam turbine application

Yaxin Xu; Wenya Li; Xiawei Yang

doi:10.1016/j.corsci.2021.110033

Oxidation performance of aluminide coating on Inconel 783 bolts for ultra-supercritical steam turbine application

Yaxin Xu, Wenya Li, Xiawei Yang

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

12 引用（Scopus）

摘要

The aluminide coating was prepared on Inconel 783 bolts by pack cementation for ultra-supercritical steam turbine application. The oxidation behavior of the coating and 783 alloy at 650–800 °C for 3850 h was investigated including temperature dependence of oxidation kinetics and composition of oxide scales. Results show that bare 783 alloy is unable to grow external alumina below 750 °C due to its insufficient Al content and thus shows a bell-shaped oxidation kinetics dependent on temperature. However, 2.9 µm aluminide coating is sufficient for protection of In 783 bolts.

源语言	英语
文章编号	110033
期刊	Corrosion Science
卷	196
DOI	https://doi.org/10.1016/j.corsci.2021.110033
出版状态	已出版 - 3月 2022

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title = "Oxidation performance of aluminide coating on Inconel 783 bolts for ultra-supercritical steam turbine application",

abstract = "The aluminide coating was prepared on Inconel 783 bolts by pack cementation for ultra-supercritical steam turbine application. The oxidation behavior of the coating and 783 alloy at 650–800 °C for 3850 h was investigated including temperature dependence of oxidation kinetics and composition of oxide scales. Results show that bare 783 alloy is unable to grow external alumina below 750 °C due to its insufficient Al content and thus shows a bell-shaped oxidation kinetics dependent on temperature. However, 2.9 µm aluminide coating is sufficient for protection of In 783 bolts.",

keywords = "Aluminide coating, In 783 bolts, Oxidation kinetics",

author = "Yaxin Xu and Wenya Li and Xiawei Yang",

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

year = "2022",

month = mar,

doi = "10.1016/j.corsci.2021.110033",

language = "英语",

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T1 - Oxidation performance of aluminide coating on Inconel 783 bolts for ultra-supercritical steam turbine application

AU - Xu, Yaxin

AU - Li, Wenya

AU - Yang, Xiawei

PY - 2022/3

Y1 - 2022/3

N2 - The aluminide coating was prepared on Inconel 783 bolts by pack cementation for ultra-supercritical steam turbine application. The oxidation behavior of the coating and 783 alloy at 650–800 °C for 3850 h was investigated including temperature dependence of oxidation kinetics and composition of oxide scales. Results show that bare 783 alloy is unable to grow external alumina below 750 °C due to its insufficient Al content and thus shows a bell-shaped oxidation kinetics dependent on temperature. However, 2.9 µm aluminide coating is sufficient for protection of In 783 bolts.

AB - The aluminide coating was prepared on Inconel 783 bolts by pack cementation for ultra-supercritical steam turbine application. The oxidation behavior of the coating and 783 alloy at 650–800 °C for 3850 h was investigated including temperature dependence of oxidation kinetics and composition of oxide scales. Results show that bare 783 alloy is unable to grow external alumina below 750 °C due to its insufficient Al content and thus shows a bell-shaped oxidation kinetics dependent on temperature. However, 2.9 µm aluminide coating is sufficient for protection of In 783 bolts.

KW - Aluminide coating

KW - In 783 bolts

KW - Oxidation kinetics

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DO - 10.1016/j.corsci.2021.110033

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SN - 0010-938X

VL - 196

JO - Corrosion Science

JF - Corrosion Science

M1 - 110033

ER -

Oxidation performance of aluminide coating on Inconel 783 bolts for ultra-supercritical steam turbine application

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