Preparation of MgO coatings on magnesium alloys for corrosion protection

Lei, Ting; Ouyang, Chun; Tang, Wei; Li, Lian-Feng; Zhou, Leshan

doi:10.1016/j.surfcoat.2010.04.060

Cited by 58 publications

(21 citation statements)

References 28 publications

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“…Surface properties of metal oxides can vary from typical insulator and semiconductor behaviour to metal-like behaviour. Such diversity qualifies them for many technological applications, including those in catalysis [46,47], energy conversion [48], chemical sensors and environmental monitoring [49], corrosion [50], and ceramics [51].…”

Section: Chemisorption On Metal Oxidesmentioning

confidence: 99%

Chemisorption as the essential step in electrochemical energy conversion - Review

Dobrota

Pašti

2020

J. Electrochem. Sci. Eng.

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<p class="PaperAbstract">Growing world population and energy demands have placed energy conversion and storage into the very centre of modern research. Electrochemical energy conversion systems including batteries, fuel cells, and supercapacitors, are widely considered as the next generation power sources. Even though they rely on different mechanisms of energy conversion and storage, fundamentally these are all electrochemical cells, operating through processes taking place at the solid/liquid interfaces, i.e. electrodes. Considering the interfacial nature of electrodes, it is clear that adsorption phenomena cannot be neglected when considering electrochemical systems. More than that, they are of crucial importance for electrochemical processes and represent an essential step in electrochemical energy conversion. In this contribution we give an overview of the phenomena underlying the operation of sustainable metal-ion batteries, fuel cells and supercapacitors, ranging from electrocatalytic reactions and pseudo-faradaic processes to purely adsorptive processes, emphasizing the types, roles and significance of chemisorption. We review experimental and theoretical methods which can provide information about chemisorption in the mentioned systems, stressing the importance of combining both approaches.</p>

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Section: Chemisorption On Metal Oxidesmentioning

confidence: 99%

Chemisorption as the essential step in electrochemical energy conversion - Review

Dobrota

Pašti

2020

J. Electrochem. Sci. Eng.

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“…In the past several years, a number of surface modification techniques including micro-arc oxidation (MAO), electrochemical plating, anodizing oxidation and organic coating have been developed to improve the corrosion resistance of magnesium alloys [6]. Among these methods, anodizing oxidation is considered as one of the most popular methods [7,8]. Microarc oxidation is a relatively new surface treatment [6].…”

Section: Introductionmentioning

confidence: 99%

High temperature oxidation behavior of Mg-Y-Sn, Mg-Y, Mg-Sn alloys and its effect on corrosion property

Jiang

Hong

et al. 2015

Applied Surface Science

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“…The widespread coatings are generated by various techniques such as chemical conversion, plasma electrolytic oxidation (PEO), also called micro arc oxidation (MAO), gas-phase deposition, organic compounds deposition, sol-gel, physical vapour deposition (PVD), laser cladding, etc. [8][9][10][11][12][13][14]. In recent years, PEO process has been successfully applied to magnesium and its alloys against corrosion owing to low cost, easy preparation, relatively high wear resistance as compared to other coatings [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Characterisation and corrosion behaviour of plasma electrolytic oxidation coatings on high pressure die cast Mg–5Al–0.4Mn–xCe (x=0, 0.5, 1) alloys

Muhaffel

Mert

Çi̇menoǧlu

et al. 2015

Surface and Coatings Technology

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In the present study, the influence of minor cerium (Ce) additions (up to 1 wt.%) to AM50 magnesium alloy on the plasma electrolytic oxidation (PEO) process and the corrosion performance of the PEO coatings were studied. Therefore, a silicate-based PEO coating was deposited on AM50 containing 0, 0.5 and 1 wt.% Ce under the same processing conditions. The resulting surface morphology, cross-sectional microstructure, phase and chemical compositions of the coatings were determined using scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction analyses (XRD). The corrosion behaviour of the coatings was evaluated by salt spray and electrochemical corrosion tests. The results show that the growth rate of the coating is reduced, but the thickness is becoming more uniform if cerium is added to AM50 alloy. However, the phase composition and coating morphology are hardly influenced, but the corrosion properties reveal large differences suggesting that the porous PEO coatings have to be considered as a system of coating and substrate. A more uniform corroding substrate such as the cerium alloyed AM50 provides much better protection in combination with a PEO coating than the pure AM50. Flaking-off of large coating areas was observed due to the volume increase caused by corrosion products forming in the interface. Such a severe localised corrosion in the interface causing delamination of the coating can be suppressed by cerium addition.

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Preparation of MgO coatings on magnesium alloys for corrosion protection

Cited by 58 publications

References 28 publications

Chemisorption as the essential step in electrochemical energy conversion - Review

Chemisorption as the essential step in electrochemical energy conversion - Review

High temperature oxidation behavior of Mg-Y-Sn, Mg-Y, Mg-Sn alloys and its effect on corrosion property

Characterisation and corrosion behaviour of plasma electrolytic oxidation coatings on high pressure die cast Mg–5Al–0.4Mn–xCe (x=0, 0.5, 1) alloys

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