Oxidation resistance of Al-Si coating on K4104 superalloy at 1000°C

Shi Wei Yang; Hai Ying Chen; Xiao Guang Zhu; Yan Hua Wang

Oxidation resistance of Al-Si coating on K4104 superalloy at 1000°C

Shi Wei Yang^*, Hai Ying Chen, Xiao Guang Zhu, Yan Hua Wang

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Harbin Engineering University

科研成果: 期刊稿件 › 文章 › 同行评审

8 引用（Scopus）

摘要

The surface morphology, cross - sectional microstructure and compositional change of Al-Si diffusion coatings oxidized in air at 1000°C for different time were studied by scanning electronic microscopy (SEM) equipped with energy dispersive analysis of X-ray(EDAX). The oxidation kinetics of the coating was monitored by intermittent weight gain measurement. It was revealed that the addition of Si in Al-Si coating accelerates the transformation from θ-Al₂O₃ to α-Al₂O₃ and is in favor of the formation of compact oxide scale. Meanwhile, it can promote the formation of carbide barrier layer, thereby, suppresses the elements diffusion between coating and substrate so that Al-Si coating is superior to Al coating.

源语言	英语
页（从-至）	5-8
页数	4
期刊	Corrosion Science and Protection Technology
卷	19
期	1
出版状态	已出版 - 2007
已对外发布	是

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Yang, S. W., Chen, H. Y., Zhu, X. G., & Wang, Y. H. (2007). Oxidation resistance of Al-Si coating on K4104 superalloy at 1000°C. Corrosion Science and Protection Technology, 19(1), 5-8.

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title = "Oxidation resistance of Al-Si coating on K4104 superalloy at 1000°C",

abstract = "The surface morphology, cross - sectional microstructure and compositional change of Al-Si diffusion coatings oxidized in air at 1000°C for different time were studied by scanning electronic microscopy (SEM) equipped with energy dispersive analysis of X-ray(EDAX). The oxidation kinetics of the coating was monitored by intermittent weight gain measurement. It was revealed that the addition of Si in Al-Si coating accelerates the transformation from θ-Al2O3 to α-Al2O3 and is in favor of the formation of compact oxide scale. Meanwhile, it can promote the formation of carbide barrier layer, thereby, suppresses the elements diffusion between coating and substrate so that Al-Si coating is superior to Al coating.",

keywords = "Al-Si coating, Isothermal oxidation, K4104 superalloy, Oxidation kinetics",

author = "Yang, {Shi Wei} and Chen, {Hai Ying} and Zhu, {Xiao Guang} and Wang, {Yan Hua}",

year = "2007",

language = "English",

volume = "19",

pages = "5--8",

journal = "Corrosion Science and Protection Technology",

issn = "1002-6495",

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TY - JOUR

T1 - Oxidation resistance of Al-Si coating on K4104 superalloy at 1000°C

AU - Yang, Shi Wei

AU - Chen, Hai Ying

AU - Zhu, Xiao Guang

AU - Wang, Yan Hua

PY - 2007

Y1 - 2007

N2 - The surface morphology, cross - sectional microstructure and compositional change of Al-Si diffusion coatings oxidized in air at 1000°C for different time were studied by scanning electronic microscopy (SEM) equipped with energy dispersive analysis of X-ray(EDAX). The oxidation kinetics of the coating was monitored by intermittent weight gain measurement. It was revealed that the addition of Si in Al-Si coating accelerates the transformation from θ-Al2O3 to α-Al2O3 and is in favor of the formation of compact oxide scale. Meanwhile, it can promote the formation of carbide barrier layer, thereby, suppresses the elements diffusion between coating and substrate so that Al-Si coating is superior to Al coating.

AB - The surface morphology, cross - sectional microstructure and compositional change of Al-Si diffusion coatings oxidized in air at 1000°C for different time were studied by scanning electronic microscopy (SEM) equipped with energy dispersive analysis of X-ray(EDAX). The oxidation kinetics of the coating was monitored by intermittent weight gain measurement. It was revealed that the addition of Si in Al-Si coating accelerates the transformation from θ-Al2O3 to α-Al2O3 and is in favor of the formation of compact oxide scale. Meanwhile, it can promote the formation of carbide barrier layer, thereby, suppresses the elements diffusion between coating and substrate so that Al-Si coating is superior to Al coating.

KW - Al-Si coating

KW - Isothermal oxidation

KW - K4104 superalloy

KW - Oxidation kinetics

UR - http://www.scopus.com/inward/record.url?scp=54449085717&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:54449085717

SN - 1002-6495

VL - 19

SP - 5

EP - 8

JO - Corrosion Science and Protection Technology

JF - Corrosion Science and Protection Technology

IS - 1

ER -

Oxidation resistance of Al-Si coating on K4104 superalloy at 1000°C

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