Formation and oxidation behavior of Mo-Si-B composite coatings with B-rich interlayer prepared by slurry sintering method

Beibei Xu; Xiping Guo; Yanqiang Qiao

doi:10.1016/j.corsci.2023.111353

Formation and oxidation behavior of Mo-Si-B composite coatings with B-rich interlayer prepared by slurry sintering method

Beibei Xu, Xiping Guo, Yanqiang Qiao

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

9 Scopus citations

Abstract

The Mo-Si-B composite coatings with a B-rich interlayer were prepared on Nb-Si based ultrahigh temperature alloys by slurry sintering method, which exhibited a three-layer structure. The effect of B content (0, 5, 10 and 15 at%) on the microstructure and oxidation resistance of the coatings was investigated. The 10B coating had the lowest mass gain (5.9 mg/cm²) after oxidation at 1250 °C for 100 h. Its good oxidation resistance is attributed to the formation of oxide scales with crack-less, high fluidity and low oxygen permeability, which effectively prevents the inward diffusion of oxygen and prompts the transition from internal oxidation to external oxidation.

Original language	English
Article number	111353
Journal	Corrosion Science
Volume	221
DOIs	https://doi.org/10.1016/j.corsci.2023.111353
State	Published - 15 Aug 2023

Keywords

Microstructural evolution (C)
Mo-Si-B composite coatings (A)
Oxidation behavior (C)
Slurry sintering (B)

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10.1016/j.corsci.2023.111353

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title = "Formation and oxidation behavior of Mo-Si-B composite coatings with B-rich interlayer prepared by slurry sintering method",

abstract = "The Mo-Si-B composite coatings with a B-rich interlayer were prepared on Nb-Si based ultrahigh temperature alloys by slurry sintering method, which exhibited a three-layer structure. The effect of B content (0, 5, 10 and 15 at%) on the microstructure and oxidation resistance of the coatings was investigated. The 10B coating had the lowest mass gain (5.9 mg/cm2) after oxidation at 1250 °C for 100 h. Its good oxidation resistance is attributed to the formation of oxide scales with crack-less, high fluidity and low oxygen permeability, which effectively prevents the inward diffusion of oxygen and prompts the transition from internal oxidation to external oxidation.",

keywords = "Microstructural evolution (C), Mo-Si-B composite coatings (A), Oxidation behavior (C), Slurry sintering (B)",

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T1 - Formation and oxidation behavior of Mo-Si-B composite coatings with B-rich interlayer prepared by slurry sintering method

AU - Xu, Beibei

AU - Guo, Xiping

AU - Qiao, Yanqiang

PY - 2023/8/15

Y1 - 2023/8/15

N2 - The Mo-Si-B composite coatings with a B-rich interlayer were prepared on Nb-Si based ultrahigh temperature alloys by slurry sintering method, which exhibited a three-layer structure. The effect of B content (0, 5, 10 and 15 at%) on the microstructure and oxidation resistance of the coatings was investigated. The 10B coating had the lowest mass gain (5.9 mg/cm2) after oxidation at 1250 °C for 100 h. Its good oxidation resistance is attributed to the formation of oxide scales with crack-less, high fluidity and low oxygen permeability, which effectively prevents the inward diffusion of oxygen and prompts the transition from internal oxidation to external oxidation.

AB - The Mo-Si-B composite coatings with a B-rich interlayer were prepared on Nb-Si based ultrahigh temperature alloys by slurry sintering method, which exhibited a three-layer structure. The effect of B content (0, 5, 10 and 15 at%) on the microstructure and oxidation resistance of the coatings was investigated. The 10B coating had the lowest mass gain (5.9 mg/cm2) after oxidation at 1250 °C for 100 h. Its good oxidation resistance is attributed to the formation of oxide scales with crack-less, high fluidity and low oxygen permeability, which effectively prevents the inward diffusion of oxygen and prompts the transition from internal oxidation to external oxidation.

KW - Microstructural evolution (C)

KW - Mo-Si-B composite coatings (A)

KW - Oxidation behavior (C)

KW - Slurry sintering (B)

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DO - 10.1016/j.corsci.2023.111353

M3 - 文章

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SN - 0010-938X

VL - 221

JO - Corrosion Science

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ER -

Formation and oxidation behavior of Mo-Si-B composite coatings with B-rich interlayer prepared by slurry sintering method

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