Effect of Al content on the structure and oxidation resistance of Y and Al modified silicide coatings prepared on Nb-Ti-Si based alloy

Ping Zhang; Xiping Guo

doi:10.1016/j.corsci.2013.01.010

Effect of Al content on the structure and oxidation resistance of Y and Al modified silicide coatings prepared on Nb-Ti-Si based alloy

Ping Zhang
, Xiping Guo

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

73 Scopus citations

Abstract

Several Y and Al modified silicide coatings containing different Al contents were prepared on an Nb-Ti-Si based alloy by pack cementation technique. The microstructure and oxidation resistance of these coatings were investigated. The existence of Al in the coatings was in the form of solid solutions in (Nb,X)Si₂ outer layer and forming Al-rich inner layer. A suitable content of Al in the coatings improved their oxidation resistance at 1250°C for promoting the formation of SiO₂ preferentially, while an excess of Al in the coatings imposed an adverse effect for destroying the integrality of the SiO₂ scale.

Original language	English
Pages (from-to)	10-19
Number of pages	10
Journal	Corrosion Science
Volume	71
DOIs	https://doi.org/10.1016/j.corsci.2013.01.010
State	Published - Jun 2013

Keywords

A. Intermetallic
A. Metal coatings
C. Oxidation

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10.1016/j.corsci.2013.01.010

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title = "Effect of Al content on the structure and oxidation resistance of Y and Al modified silicide coatings prepared on Nb-Ti-Si based alloy",

abstract = "Several Y and Al modified silicide coatings containing different Al contents were prepared on an Nb-Ti-Si based alloy by pack cementation technique. The microstructure and oxidation resistance of these coatings were investigated. The existence of Al in the coatings was in the form of solid solutions in (Nb,X)Si2 outer layer and forming Al-rich inner layer. A suitable content of Al in the coatings improved their oxidation resistance at 1250°C for promoting the formation of SiO2 preferentially, while an excess of Al in the coatings imposed an adverse effect for destroying the integrality of the SiO2 scale.",

keywords = "A. Intermetallic, A. Metal coatings, C. Oxidation",

author = "Ping Zhang and Xiping Guo",

year = "2013",

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doi = "10.1016/j.corsci.2013.01.010",

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T1 - Effect of Al content on the structure and oxidation resistance of Y and Al modified silicide coatings prepared on Nb-Ti-Si based alloy

AU - Zhang, Ping

AU - Guo, Xiping

PY - 2013/6

Y1 - 2013/6

N2 - Several Y and Al modified silicide coatings containing different Al contents were prepared on an Nb-Ti-Si based alloy by pack cementation technique. The microstructure and oxidation resistance of these coatings were investigated. The existence of Al in the coatings was in the form of solid solutions in (Nb,X)Si2 outer layer and forming Al-rich inner layer. A suitable content of Al in the coatings improved their oxidation resistance at 1250°C for promoting the formation of SiO2 preferentially, while an excess of Al in the coatings imposed an adverse effect for destroying the integrality of the SiO2 scale.

AB - Several Y and Al modified silicide coatings containing different Al contents were prepared on an Nb-Ti-Si based alloy by pack cementation technique. The microstructure and oxidation resistance of these coatings were investigated. The existence of Al in the coatings was in the form of solid solutions in (Nb,X)Si2 outer layer and forming Al-rich inner layer. A suitable content of Al in the coatings improved their oxidation resistance at 1250°C for promoting the formation of SiO2 preferentially, while an excess of Al in the coatings imposed an adverse effect for destroying the integrality of the SiO2 scale.

KW - A. Intermetallic

KW - A. Metal coatings

KW - C. Oxidation

UR - https://www.scopus.com/pages/publications/84876337828

U2 - 10.1016/j.corsci.2013.01.010

DO - 10.1016/j.corsci.2013.01.010

M3 - 文章

AN - SCOPUS:84876337828

SN - 0010-938X

VL - 71

SP - 10

EP - 19

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of Al content on the structure and oxidation resistance of Y and Al modified silicide coatings prepared on Nb-Ti-Si based alloy

Abstract

Keywords

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