Long-term corrosion behavior of HVOF sprayed FeCrSiBMn amorphous/nanocrystalline coating

Yu Jiao Qin; Yu Ping Wu; Jian Feng Zhang; Wen Min Guo; Sheng Hong; Li Yan Chen

doi:10.1016/S1003-6326(15)63709-8

Long-term corrosion behavior of HVOF sprayed FeCrSiBMn amorphous/nanocrystalline coating

Yu Jiao Qin, Yu Ping Wu, Jian Feng Zhang, Wen Min Guo, Sheng Hong, Li Yan Chen

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

26 Citations (Scopus)

Abstract

Abstract A FeCrSiBMn amorphous/nanocrystalline coating with 700 μm in thickness and 0.65% in porosity, was prepared by high velocity oxygen fuel (HVOF) spraying process. The long-term corrosion behavior of the FeCrSiBMn coating was evaluated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in a 3.5% NaCl solution with a hard chromium coating as a reference. The FeCrSiBMn coating exhibited higher corrosion potential and lower corrosion current density than the hard chromium coating. The pore resistance (R_p) and charge transfer resistance (R_ct) of FeCrSiBMn coating were higher than those of the hard chromium coating. In addition, after immersion in the NaCl solution for 28 d, only small pores in the FeCrSiBMn coating were observed. All the results indicated that the FeCrSiBMn coating held superior corrosion resistance to the hard chromium coating. This could be attributed to the dense structure, low porosity and amorphous/nanocrystalline phases of the FeCrSiBMn coating.

Original language	English
Article number	63709
Pages (from-to)	1144-1150
Number of pages	7
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	25
Issue number	4
DOIs	https://doi.org/10.1016/S1003-6326(15)63709-8
Publication status	Published - 2015 Apr 1
Externally published	Yes

Keywords

Fe-based amorphous/nanocrystalline
HVOF spraying
coating
corrosion resistance

ASJC Scopus subject areas

Condensed Matter Physics
Geotechnical Engineering and Engineering Geology
Metals and Alloys
Materials Chemistry

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10.1016/S1003-6326(15)63709-8

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title = "Long-term corrosion behavior of HVOF sprayed FeCrSiBMn amorphous/nanocrystalline coating",

abstract = "Abstract A FeCrSiBMn amorphous/nanocrystalline coating with 700 μm in thickness and 0.65% in porosity, was prepared by high velocity oxygen fuel (HVOF) spraying process. The long-term corrosion behavior of the FeCrSiBMn coating was evaluated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in a 3.5% NaCl solution with a hard chromium coating as a reference. The FeCrSiBMn coating exhibited higher corrosion potential and lower corrosion current density than the hard chromium coating. The pore resistance (Rp) and charge transfer resistance (Rct) of FeCrSiBMn coating were higher than those of the hard chromium coating. In addition, after immersion in the NaCl solution for 28 d, only small pores in the FeCrSiBMn coating were observed. All the results indicated that the FeCrSiBMn coating held superior corrosion resistance to the hard chromium coating. This could be attributed to the dense structure, low porosity and amorphous/nanocrystalline phases of the FeCrSiBMn coating.",

keywords = "Fe-based amorphous/nanocrystalline, HVOF spraying, coating, corrosion resistance",

author = "Qin, {Yu Jiao} and Wu, {Yu Ping} and Zhang, {Jian Feng} and Guo, {Wen Min} and Sheng Hong and Chen, {Li Yan}",

note = "Publisher Copyright: {\textcopyright} 2015 The Nonferrous Metals Society of China.",

year = "2015",

month = apr,

day = "1",

doi = "10.1016/S1003-6326(15)63709-8",

language = "English",

volume = "25",

pages = "1144--1150",

journal = "Transactions of Nonferrous Metals Society of China",

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TY - JOUR

T1 - Long-term corrosion behavior of HVOF sprayed FeCrSiBMn amorphous/nanocrystalline coating

AU - Qin, Yu Jiao

AU - Wu, Yu Ping

AU - Zhang, Jian Feng

AU - Guo, Wen Min

AU - Hong, Sheng

AU - Chen, Li Yan

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Abstract A FeCrSiBMn amorphous/nanocrystalline coating with 700 μm in thickness and 0.65% in porosity, was prepared by high velocity oxygen fuel (HVOF) spraying process. The long-term corrosion behavior of the FeCrSiBMn coating was evaluated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in a 3.5% NaCl solution with a hard chromium coating as a reference. The FeCrSiBMn coating exhibited higher corrosion potential and lower corrosion current density than the hard chromium coating. The pore resistance (Rp) and charge transfer resistance (Rct) of FeCrSiBMn coating were higher than those of the hard chromium coating. In addition, after immersion in the NaCl solution for 28 d, only small pores in the FeCrSiBMn coating were observed. All the results indicated that the FeCrSiBMn coating held superior corrosion resistance to the hard chromium coating. This could be attributed to the dense structure, low porosity and amorphous/nanocrystalline phases of the FeCrSiBMn coating.

AB - Abstract A FeCrSiBMn amorphous/nanocrystalline coating with 700 μm in thickness and 0.65% in porosity, was prepared by high velocity oxygen fuel (HVOF) spraying process. The long-term corrosion behavior of the FeCrSiBMn coating was evaluated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in a 3.5% NaCl solution with a hard chromium coating as a reference. The FeCrSiBMn coating exhibited higher corrosion potential and lower corrosion current density than the hard chromium coating. The pore resistance (Rp) and charge transfer resistance (Rct) of FeCrSiBMn coating were higher than those of the hard chromium coating. In addition, after immersion in the NaCl solution for 28 d, only small pores in the FeCrSiBMn coating were observed. All the results indicated that the FeCrSiBMn coating held superior corrosion resistance to the hard chromium coating. This could be attributed to the dense structure, low porosity and amorphous/nanocrystalline phases of the FeCrSiBMn coating.

KW - Fe-based amorphous/nanocrystalline

KW - HVOF spraying

KW - coating

KW - corrosion resistance

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Long-term corrosion behavior of HVOF sprayed FeCrSiBMn amorphous/nanocrystalline coating

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