A vanadium-based conversion coating as chromate replacement for electrogalvanized steel substrates

Zhongli Zou; Ning Li; Deyu Li; Haiping Liu; Songlin Mu

doi:10.1016/j.jallcom.2010.09.080

A vanadium-based conversion coating as chromate replacement for electrogalvanized steel substrates

Zhongli Zou
, Ning Li^*
, Deyu Li
, Haiping Liu
, Songlin Mu

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology

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

83 Scopus citations

Abstract

The vanadium conversion coating as chromate replacement was prepared on electrogalvanized steel (EG) plates previously treated in a solution mainly composed of vanadate. Corrosion behavior of these EG plates in contact with 3.5% NaCl solution was investigated using potentio-dynamic measurement and electrochemical impedance spectroscopy (EIS) measurement. The morphology and composition of the vanadium conversion coating were studied using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) in conjunction with argon-ion sputtering. According to the results, the V-treated EG plate shows the best corrosion protection property compared with the untreated and Cr-treated EG plates. The vanadium-rich coating is composed of the closely packed particles. The coating mainly consists of vanadium and oxygen, which mainly exist as V₂O₅, VO₂, and its hydrates such as V₂O₅·nH₂O, VO(OH) ₂.

Original language	English
Pages (from-to)	503-507
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2010.09.080
State	Published - 12 Jan 2011
Externally published	Yes

Keywords

Chemical conversion coating
Corrosion resistance
Electrogalvanized steel
Vanadium
X-ray techniques

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10.1016/j.jallcom.2010.09.080

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title = "A vanadium-based conversion coating as chromate replacement for electrogalvanized steel substrates",

abstract = "The vanadium conversion coating as chromate replacement was prepared on electrogalvanized steel (EG) plates previously treated in a solution mainly composed of vanadate. Corrosion behavior of these EG plates in contact with 3.5\% NaCl solution was investigated using potentio-dynamic measurement and electrochemical impedance spectroscopy (EIS) measurement. The morphology and composition of the vanadium conversion coating were studied using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) in conjunction with argon-ion sputtering. According to the results, the V-treated EG plate shows the best corrosion protection property compared with the untreated and Cr-treated EG plates. The vanadium-rich coating is composed of the closely packed particles. The coating mainly consists of vanadium and oxygen, which mainly exist as V2O5, VO2, and its hydrates such as V2O5·nH2O, VO(OH) 2.",

keywords = "Chemical conversion coating, Corrosion resistance, Electrogalvanized steel, Vanadium, X-ray techniques",

author = "Zhongli Zou and Ning Li and Deyu Li and Haiping Liu and Songlin Mu",

year = "2011",

month = jan,

day = "12",

doi = "10.1016/j.jallcom.2010.09.080",

language = "英语",

volume = "509",

pages = "503--507",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - A vanadium-based conversion coating as chromate replacement for electrogalvanized steel substrates

AU - Zou, Zhongli

AU - Li, Ning

AU - Li, Deyu

AU - Liu, Haiping

AU - Mu, Songlin

PY - 2011/1/12

Y1 - 2011/1/12

N2 - The vanadium conversion coating as chromate replacement was prepared on electrogalvanized steel (EG) plates previously treated in a solution mainly composed of vanadate. Corrosion behavior of these EG plates in contact with 3.5% NaCl solution was investigated using potentio-dynamic measurement and electrochemical impedance spectroscopy (EIS) measurement. The morphology and composition of the vanadium conversion coating were studied using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) in conjunction with argon-ion sputtering. According to the results, the V-treated EG plate shows the best corrosion protection property compared with the untreated and Cr-treated EG plates. The vanadium-rich coating is composed of the closely packed particles. The coating mainly consists of vanadium and oxygen, which mainly exist as V2O5, VO2, and its hydrates such as V2O5·nH2O, VO(OH) 2.

AB - The vanadium conversion coating as chromate replacement was prepared on electrogalvanized steel (EG) plates previously treated in a solution mainly composed of vanadate. Corrosion behavior of these EG plates in contact with 3.5% NaCl solution was investigated using potentio-dynamic measurement and electrochemical impedance spectroscopy (EIS) measurement. The morphology and composition of the vanadium conversion coating were studied using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) in conjunction with argon-ion sputtering. According to the results, the V-treated EG plate shows the best corrosion protection property compared with the untreated and Cr-treated EG plates. The vanadium-rich coating is composed of the closely packed particles. The coating mainly consists of vanadium and oxygen, which mainly exist as V2O5, VO2, and its hydrates such as V2O5·nH2O, VO(OH) 2.

KW - Chemical conversion coating

KW - Corrosion resistance

KW - Electrogalvanized steel

KW - Vanadium

KW - X-ray techniques

UR - https://www.scopus.com/pages/publications/78149284994

U2 - 10.1016/j.jallcom.2010.09.080

DO - 10.1016/j.jallcom.2010.09.080

M3 - 文章

AN - SCOPUS:78149284994

SN - 0925-8388

VL - 509

SP - 503

EP - 507

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

A vanadium-based conversion coating as chromate replacement for electrogalvanized steel substrates

Abstract

Keywords

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