The effect of time dependent native oxide surface conditions on the electrochemical corrosion resistance of Mg and Mg-Al-Ca alloys

Felten, Markus; Nowak, Jakub; Beyss, Oliver; Grünewald, Patrick; Zander, Daniela

doi:10.1016/j.corsci.2022.110925

Cited by 25 publications

(3 citation statements)

References 71 publications

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“…Simultaneously, in Figure 10e, there is a noticeable peak of Mg(OH) 2 binding energy at 49.51 eV on the corroded surface. 48 When combined with Figure 9, it can be inferred that Cu(OH) 2 can form a compact product with Mg(OH) 2 , which can provide better protection to the matrix and enhance the coating's corrosion resistance. Kinetic Model of Superhydrophobic Coating in the Immersion Process.…”

Section: ■ Results and Discussionmentioning

confidence: 90%

“…The peaks of the corroded coating, in Figure d, are analyzed and subsequently identified as Cu(OH) 2 (935.08 eV), CuO (954.70 eV), and Cu (933.04 eV). − This indicates that copper oxide on the surface is destroyed, resulting in the exposure of the pure copper matrix and the formation of corrosion products. Simultaneously, in Figure e, there is a noticeable peak of Mg(OH) 2 binding energy at 49.51 eV on the corroded surface . When combined with Figure , it can be inferred that Cu(OH) 2 can form a compact product with Mg(OH) 2 , which can provide better protection to the matrix and enhance the coating’s corrosion resistance.…”

Section: Resultsmentioning

confidence: 99%

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Preparation of Superhydrophobic Coating on X80 Steel and Its Corrosion Resistance in Oilfield Produced Water

Yang,

Zhang,

Pan

et al. 2024

Langmuir

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Corrosion is an unavoidable issue that steel encounters during service; however, the generic methods employed for corrosion prevention often need high cost or preparation conditions. In this study, a facile chemical replacement deposition method was proposed to realize an anticorrosion superhydrophobic coating on a X80 steel surface. The growth mechanism of the rough structure and its impact on the wettability of the superhydrophobic coating were analyzed. The superhydrophobic coating, deposited for 50 s and modified for 30 min, achieved optimal electrochemical properties and a maximum water contact angle. The immersion test, in the saturated CO 2 oilfield produced water, demonstrated the better corrosion resistance of superhydrophobic coating than X80 steel. Correspondingly, a kinetic corrosion model was established to analyze the anticorrosion mechanism. In summary, this method significantly improves the corrosion resistance of X80 steel and is attractive for other industrial fields.

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Section: ■ Results and Discussionmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Preparation of Superhydrophobic Coating on X80 Steel and Its Corrosion Resistance in Oilfield Produced Water

Yang,

Zhang,

Pan

et al. 2024

Langmuir

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show abstract

“…In Figure9b, the O 1s spectrum consists of three main peaks. The peaks at 529.5 eV and 531.8 eV are respectively associated with MgO and Mg(OH) 2[28,29]. Furthermore, the peak present on the O 1s high-resolution spectrum at 533 eV is ascribed to MgCO 3 , a compound that is also commonly found in the Mg corrosion layer[30].…”

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confidence: 99%

Dynamic Marine Atmospheric Corrosion Behavior of AZ91 Mg Alloy Sailing from Yellow Sea to Western Pacific Ocean

Yang,

Liu,

Wang

et al. 2024

Materials

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In this work, the dynamic marine atmospheric corrosion behavior of AZ91 Mg alloy sailing from Yellow Sea to Western Pacific Ocean was studied. The corrosion rates were measured using the weight loss method. The microstructure, phase, and chemical composition of corroded samples were investigated by SEM, EDS, XRD, and XPS. The results show that the evolution of corrosion rates of AZ91 Mg alloy was divided into three stages: rapidly increasing during the first 3 months, then remaining stable for the next three months, and finally decreasing after 6 months. The annual corrosion rate of Mg alloy reached 32.50 μm/y after exposure for 12 months in a dynamic marine atmospheric environment, which was several times higher than that of the static field exposure tests. AZ91 magnesium alloy was mainly subjected to localized corrosion with more destructiveness to Mg parts, which is mainly due to the synergistic effect of high relative humidity, the high deposition rate of chloride ion, sulfur dioxide acidic gas produced by fuel combustion, and rapid temperature changes caused by the alternating changes in longitude and latitude during navigation. As the exposure time increased, the corrosion pits gradually increased and deepened. The maximum depth of the corrosion pit was 197 μm after 12 months of exposure, which is almost 6 times the average corrosion depth. This study provides scientific data support for the application of magnesium alloys in shipborne aircraft and electronic equipment. The results could provide guidance for the design of new magnesium alloys and development of anti-corrosion technologies.

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Effect of zinc clustering, micro-texture, and surface oxide constituents on the electrochemical corrosion of Sn-Zn coatings electrodeposited at different current densities

Singh,

Srivastava

2024

J Mater Sci

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The effect of time dependent native oxide surface conditions on the electrochemical corrosion resistance of Mg and Mg-Al-Ca alloys

Cited by 25 publications

References 71 publications

Preparation of Superhydrophobic Coating on X80 Steel and Its Corrosion Resistance in Oilfield Produced Water

Preparation of Superhydrophobic Coating on X80 Steel and Its Corrosion Resistance in Oilfield Produced Water

Dynamic Marine Atmospheric Corrosion Behavior of AZ91 Mg Alloy Sailing from Yellow Sea to Western Pacific Ocean

Effect of zinc clustering, micro-texture, and surface oxide constituents on the electrochemical corrosion of Sn-Zn coatings electrodeposited at different current densities

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