Enhanced corrosion protection of MgO coatings on magnesium alloy deposited by an anodic electrodeposition process

Ting Lei; Chun Ouyang; Wei Tang; Lian Feng Li; Le Shan Zhou

doi:10.1016/j.corsci.2010.06.028

Enhanced corrosion protection of MgO coatings on magnesium alloy deposited by an anodic electrodeposition process

Ting Lei, Chun Ouyang, Wei Tang, Lian Feng Li, Le Shan Zhou

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

102 Scopus citations

Abstract

MgO coatings were prepared on magnesium alloy surface by an anodic electrodeposition process in concentrated KOH solution followed by heat treatment in air. The phase composition and microstructure of the as-formed MgO coatings were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The corrosion behavior of the MgO-coated samples was evaluated by electrochemical measurements and immersion tests in Hanks' solution. The results showed that the MgO-coated Mg alloy exhibited a much superior stability and lower corrosion rate, and thus enabled to improve the corrosion resistance, whereas the bare Mg alloy suffered from severely localized corrosion attack.

Original language	English
Pages (from-to)	3504-3508
Number of pages	5
Journal	Corrosion Science
Volume	52
Issue number	10
DOIs	https://doi.org/10.1016/j.corsci.2010.06.028
State	Published - Oct 2010
Externally published	Yes

Keywords

A. Magnesium
B. Potentiostatic
C. Electrodeposited films
C. Oxide coatings
C. Passive films

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10.1016/j.corsci.2010.06.028

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title = "Enhanced corrosion protection of MgO coatings on magnesium alloy deposited by an anodic electrodeposition process",

abstract = "MgO coatings were prepared on magnesium alloy surface by an anodic electrodeposition process in concentrated KOH solution followed by heat treatment in air. The phase composition and microstructure of the as-formed MgO coatings were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The corrosion behavior of the MgO-coated samples was evaluated by electrochemical measurements and immersion tests in Hanks' solution. The results showed that the MgO-coated Mg alloy exhibited a much superior stability and lower corrosion rate, and thus enabled to improve the corrosion resistance, whereas the bare Mg alloy suffered from severely localized corrosion attack.",

keywords = "A. Magnesium, B. Potentiostatic, C. Electrodeposited films, C. Oxide coatings, C. Passive films",

author = "Ting Lei and Chun Ouyang and Wei Tang and Li, {Lian Feng} and Zhou, {Le Shan}",

note = "Funding Information: This work was supported by Creative Research Group of National Natural Science Foundation of China (Grant No. 50721003 ), National Science Fund for Distinguished Young Scholars (Grant No. 50825102 ) and Open Project of State Key Laboratory for Powder Metallurgy of CSU. ",

year = "2010",

month = oct,

doi = "10.1016/j.corsci.2010.06.028",

language = "English",

volume = "52",

pages = "3504--3508",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Enhanced corrosion protection of MgO coatings on magnesium alloy deposited by an anodic electrodeposition process

AU - Lei, Ting

AU - Ouyang, Chun

AU - Tang, Wei

AU - Li, Lian Feng

AU - Zhou, Le Shan

N1 - Funding Information: This work was supported by Creative Research Group of National Natural Science Foundation of China (Grant No. 50721003 ), National Science Fund for Distinguished Young Scholars (Grant No. 50825102 ) and Open Project of State Key Laboratory for Powder Metallurgy of CSU.

PY - 2010/10

Y1 - 2010/10

N2 - MgO coatings were prepared on magnesium alloy surface by an anodic electrodeposition process in concentrated KOH solution followed by heat treatment in air. The phase composition and microstructure of the as-formed MgO coatings were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The corrosion behavior of the MgO-coated samples was evaluated by electrochemical measurements and immersion tests in Hanks' solution. The results showed that the MgO-coated Mg alloy exhibited a much superior stability and lower corrosion rate, and thus enabled to improve the corrosion resistance, whereas the bare Mg alloy suffered from severely localized corrosion attack.

AB - MgO coatings were prepared on magnesium alloy surface by an anodic electrodeposition process in concentrated KOH solution followed by heat treatment in air. The phase composition and microstructure of the as-formed MgO coatings were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The corrosion behavior of the MgO-coated samples was evaluated by electrochemical measurements and immersion tests in Hanks' solution. The results showed that the MgO-coated Mg alloy exhibited a much superior stability and lower corrosion rate, and thus enabled to improve the corrosion resistance, whereas the bare Mg alloy suffered from severely localized corrosion attack.

KW - A. Magnesium

KW - B. Potentiostatic

KW - C. Electrodeposited films

KW - C. Oxide coatings

KW - C. Passive films

UR - http://www.scopus.com/inward/record.url?scp=77955514156&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2010.06.028

DO - 10.1016/j.corsci.2010.06.028

M3 - Article

AN - SCOPUS:77955514156

SN - 0010-938X

VL - 52

SP - 3504

EP - 3508

JO - Corrosion Science

JF - Corrosion Science

IS - 10

ER -

Enhanced corrosion protection of MgO coatings on magnesium alloy deposited by an anodic electrodeposition process

Abstract

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