A novel Zr-Y modified silicide coating on Nb-Si based alloys as protection against oxidation and hot corrosion

Jiahua He; Xiping Guo; Yanqiang Qiao; Fa Luo

doi:10.1016/j.corsci.2020.108948

A novel Zr-Y modified silicide coating on Nb-Si based alloys as protection against oxidation and hot corrosion

Jiahua He, Xiping Guo, Yanqiang Qiao, Fa Luo

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

35 Scopus citations

Abstract

To protect Nb-Si based alloys from oxidation and hot corrosion attacks at high temperatures, a novel Zr-Y modified silicide coating is fabricated by combining magnetron sputtering and pack cementation. It has been shown that the coating exerts a superior oxidation resistance (mass gain of 1.6 mg/cm²) than Si-Y coating (mass gain of 4.2 mg/cm²), which is attributed to forming a thin, compact and continuous SiO₂ scale and favorable scale/coating interface. Due to possessing much better scale adherence and reduced formation rate of scale, the coating possesses a better hot corrosion resistance than substrate alloy and Si-Y coating.

Original language	English
Article number	108948
Journal	Corrosion Science
Volume	177
DOIs	https://doi.org/10.1016/j.corsci.2020.108948
State	Published - Dec 2020

Keywords

A. Metal coatings
A. Zirconium
B. EPMA
C. Hot corrosion
C. Oxidation

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10.1016/j.corsci.2020.108948

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title = "A novel Zr-Y modified silicide coating on Nb-Si based alloys as protection against oxidation and hot corrosion",

abstract = "To protect Nb-Si based alloys from oxidation and hot corrosion attacks at high temperatures, a novel Zr-Y modified silicide coating is fabricated by combining magnetron sputtering and pack cementation. It has been shown that the coating exerts a superior oxidation resistance (mass gain of 1.6 mg/cm2) than Si-Y coating (mass gain of 4.2 mg/cm2), which is attributed to forming a thin, compact and continuous SiO2 scale and favorable scale/coating interface. Due to possessing much better scale adherence and reduced formation rate of scale, the coating possesses a better hot corrosion resistance than substrate alloy and Si-Y coating.",

keywords = "A. Metal coatings, A. Zirconium, B. EPMA, C. Hot corrosion, C. Oxidation",

author = "Jiahua He and Xiping Guo and Yanqiang Qiao and Fa Luo",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

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doi = "10.1016/j.corsci.2020.108948",

language = "英语",

volume = "177",

journal = "Corrosion Science",

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T1 - A novel Zr-Y modified silicide coating on Nb-Si based alloys as protection against oxidation and hot corrosion

AU - He, Jiahua

AU - Guo, Xiping

AU - Qiao, Yanqiang

AU - Luo, Fa

PY - 2020/12

Y1 - 2020/12

N2 - To protect Nb-Si based alloys from oxidation and hot corrosion attacks at high temperatures, a novel Zr-Y modified silicide coating is fabricated by combining magnetron sputtering and pack cementation. It has been shown that the coating exerts a superior oxidation resistance (mass gain of 1.6 mg/cm2) than Si-Y coating (mass gain of 4.2 mg/cm2), which is attributed to forming a thin, compact and continuous SiO2 scale and favorable scale/coating interface. Due to possessing much better scale adherence and reduced formation rate of scale, the coating possesses a better hot corrosion resistance than substrate alloy and Si-Y coating.

AB - To protect Nb-Si based alloys from oxidation and hot corrosion attacks at high temperatures, a novel Zr-Y modified silicide coating is fabricated by combining magnetron sputtering and pack cementation. It has been shown that the coating exerts a superior oxidation resistance (mass gain of 1.6 mg/cm2) than Si-Y coating (mass gain of 4.2 mg/cm2), which is attributed to forming a thin, compact and continuous SiO2 scale and favorable scale/coating interface. Due to possessing much better scale adherence and reduced formation rate of scale, the coating possesses a better hot corrosion resistance than substrate alloy and Si-Y coating.

KW - A. Metal coatings

KW - A. Zirconium

KW - B. EPMA

KW - C. Hot corrosion

KW - C. Oxidation

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U2 - 10.1016/j.corsci.2020.108948

DO - 10.1016/j.corsci.2020.108948

M3 - 文章

AN - SCOPUS:85090551297

SN - 0010-938X

VL - 177

JO - Corrosion Science

JF - Corrosion Science

M1 - 108948

ER -

A novel Zr-Y modified silicide coating on Nb-Si based alloys as protection against oxidation and hot corrosion

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Keywords

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