Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying

Zheng Zhou; Lu Wang; Fu Chi Wang; Yan Bo Liu

doi:10.1016/S1003-6326(10)60123-9

Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying

Zheng Zhou^*, Lu Wang, Fu Chi Wang, Yan Bo Liu

^*Corresponding author for this work

School of Material Science and Engineering

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

36 Citations (Scopus)

Abstract

Amorphous metallic coatings with a composition of Fe₄₈Cr ₁₅Mo₁₄C₁₅B₆Y₂ were prepared by detonation gun spraying process. Microstructural studies show that the coatings present a densely layered structure typical of thermally sprayed deposits with the porosity below 2. Both crystallization and oxidation occurred obviously during spraying process, so that the amorphous fraction of the coatings decreased to 54 compared with fully amorphous alloy ribbons of the same component. Corrosion behavior of the amorphous coatings was investigated by electrochemical measurement. The results show that the coatings exhibit extremely wide passive region and low passive current density in 3.5 NaCl (mass fraction) and 1 mol/L HCl solutions, which illustrates excellent ability to resist localized corrosion.

Original language	English
Pages (from-to)	s634-s638
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	19
Issue number	SUPPL. 3
DOIs	https://doi.org/10.1016/S1003-6326(10)60123-9
Publication status	Published - Dec 2009

Keywords

Corrosion behavior
Detonation gun
Fe-based amorphous coating
Microstructure

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title = "Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying",

abstract = "Amorphous metallic coatings with a composition of Fe48Cr 15Mo14C15B6Y2 were prepared by detonation gun spraying process. Microstructural studies show that the coatings present a densely layered structure typical of thermally sprayed deposits with the porosity below 2. Both crystallization and oxidation occurred obviously during spraying process, so that the amorphous fraction of the coatings decreased to 54 compared with fully amorphous alloy ribbons of the same component. Corrosion behavior of the amorphous coatings was investigated by electrochemical measurement. The results show that the coatings exhibit extremely wide passive region and low passive current density in 3.5 NaCl (mass fraction) and 1 mol/L HCl solutions, which illustrates excellent ability to resist localized corrosion.",

keywords = "Corrosion behavior, Detonation gun, Fe-based amorphous coating, Microstructure",

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T1 - Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying

AU - Zhou, Zheng

AU - Wang, Lu

AU - Wang, Fu Chi

AU - Liu, Yan Bo

PY - 2009/12

Y1 - 2009/12

N2 - Amorphous metallic coatings with a composition of Fe48Cr 15Mo14C15B6Y2 were prepared by detonation gun spraying process. Microstructural studies show that the coatings present a densely layered structure typical of thermally sprayed deposits with the porosity below 2. Both crystallization and oxidation occurred obviously during spraying process, so that the amorphous fraction of the coatings decreased to 54 compared with fully amorphous alloy ribbons of the same component. Corrosion behavior of the amorphous coatings was investigated by electrochemical measurement. The results show that the coatings exhibit extremely wide passive region and low passive current density in 3.5 NaCl (mass fraction) and 1 mol/L HCl solutions, which illustrates excellent ability to resist localized corrosion.

AB - Amorphous metallic coatings with a composition of Fe48Cr 15Mo14C15B6Y2 were prepared by detonation gun spraying process. Microstructural studies show that the coatings present a densely layered structure typical of thermally sprayed deposits with the porosity below 2. Both crystallization and oxidation occurred obviously during spraying process, so that the amorphous fraction of the coatings decreased to 54 compared with fully amorphous alloy ribbons of the same component. Corrosion behavior of the amorphous coatings was investigated by electrochemical measurement. The results show that the coatings exhibit extremely wide passive region and low passive current density in 3.5 NaCl (mass fraction) and 1 mol/L HCl solutions, which illustrates excellent ability to resist localized corrosion.

KW - Corrosion behavior

KW - Detonation gun

KW - Fe-based amorphous coating

KW - Microstructure

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JF - Transactions of Nonferrous Metals Society of China (English Edition)

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Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying

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Keywords

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