The role of Dy doping on cyclic oxidation behavior of Al-Si coating on new cobalt-based γ/γ′ superalloy

Kanglu Feng; Zheng Chen; Meifeng Li; Mingyue Chen; Chungen Zhou

doi:10.1016/j.corsci.2021.110077

The role of Dy doping on cyclic oxidation behavior of Al-Si coating on new cobalt-based γ/γ′ superalloy

Kanglu Feng
, Zheng Chen
, Meifeng Li^*
, Mingyue Chen
, Chungen Zhou

^*此作品的通讯作者

材料科学与工程学院

Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

6 引用（Scopus）

摘要

The Al-Si-Dy coating is prepared on the γ′-strengthened cobalt-based superalloys by pack cementation method. Cyclic oxidation resistance of the coating at 1050 ℃ is investigated through experimental and computing methods. The cycle oxidation life of the coating is more than 1.5 times that of Al-Si coating. The oxide scale on Al-Si-Dy coating is denser and has stronger adhesion compared to Al-Si coating. Dy doping improves the cyclic oxidation resistance of Al-Si coated sample. The superior cyclic oxidation resistance of the coating is ascribed to enhanced adhesion energy of oxide scale, which is caused by stronger Dy–O bond.

源语言	英语
期刊论文编号	110077
期刊	Corrosion Science
卷	197
DOI	https://doi.org/10.1016/j.corsci.2021.110077
出版状态	已出版 - 1 4月 2022

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title = "The role of Dy doping on cyclic oxidation behavior of Al-Si coating on new cobalt-based γ/γ′ superalloy",

abstract = "The Al-Si-Dy coating is prepared on the γ′-strengthened cobalt-based superalloys by pack cementation method. Cyclic oxidation resistance of the coating at 1050 ℃ is investigated through experimental and computing methods. The cycle oxidation life of the coating is more than 1.5 times that of Al-Si coating. The oxide scale on Al-Si-Dy coating is denser and has stronger adhesion compared to Al-Si coating. Dy doping improves the cyclic oxidation resistance of Al-Si coated sample. The superior cyclic oxidation resistance of the coating is ascribed to enhanced adhesion energy of oxide scale, which is caused by stronger Dy{\textendash}O bond.",

keywords = "Metal coatings, Oxidation, Superalloys, Thermal cycling",

author = "Kanglu Feng and Zheng Chen and Meifeng Li and Mingyue Chen and Chungen Zhou",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = apr,

day = "1",

doi = "10.1016/j.corsci.2021.110077",

language = "英语",

volume = "197",

journal = "Corrosion Science",

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TY - JOUR

T1 - The role of Dy doping on cyclic oxidation behavior of Al-Si coating on new cobalt-based γ/γ′ superalloy

AU - Feng, Kanglu

AU - Chen, Zheng

AU - Li, Meifeng

AU - Chen, Mingyue

AU - Zhou, Chungen

PY - 2022/4/1

Y1 - 2022/4/1

N2 - The Al-Si-Dy coating is prepared on the γ′-strengthened cobalt-based superalloys by pack cementation method. Cyclic oxidation resistance of the coating at 1050 ℃ is investigated through experimental and computing methods. The cycle oxidation life of the coating is more than 1.5 times that of Al-Si coating. The oxide scale on Al-Si-Dy coating is denser and has stronger adhesion compared to Al-Si coating. Dy doping improves the cyclic oxidation resistance of Al-Si coated sample. The superior cyclic oxidation resistance of the coating is ascribed to enhanced adhesion energy of oxide scale, which is caused by stronger Dy–O bond.

AB - The Al-Si-Dy coating is prepared on the γ′-strengthened cobalt-based superalloys by pack cementation method. Cyclic oxidation resistance of the coating at 1050 ℃ is investigated through experimental and computing methods. The cycle oxidation life of the coating is more than 1.5 times that of Al-Si coating. The oxide scale on Al-Si-Dy coating is denser and has stronger adhesion compared to Al-Si coating. Dy doping improves the cyclic oxidation resistance of Al-Si coated sample. The superior cyclic oxidation resistance of the coating is ascribed to enhanced adhesion energy of oxide scale, which is caused by stronger Dy–O bond.

KW - Metal coatings

KW - Oxidation

KW - Superalloys

KW - Thermal cycling

UR - https://www.scopus.com/pages/publications/85122060802

U2 - 10.1016/j.corsci.2021.110077

DO - 10.1016/j.corsci.2021.110077

M3 - 文章

AN - SCOPUS:85122060802

SN - 0010-938X

VL - 197

JO - Corrosion Science

JF - Corrosion Science

M1 - 110077

ER -

The role of Dy doping on cyclic oxidation behavior of Al-Si coating on new cobalt-based γ/γ′ superalloy

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