Novel smart and self-healing cerium phosphate-based corrosion inhibitor for AZ31 magnesium alloy

Calado, Lénia M.; Taryba, Maryna; Morozov, Yegor; Carmezim, M.J.; Montemor, M.F.

doi:10.1016/j.corsci.2020.108648

Cited by 91 publications

(24 citation statements)

References 46 publications

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“…Overall, Ce(DEHP) 3 was shown to be one of the first truly efficient corrosion inhibitors for WE series magnesium alloys, conferring long-term, pH-sensitive, and self-healing protection. This inhibitor was also shown to be effective for AZ series magnesium alloys (Calado et al, 2020), and for mild steel (Morozov et al, 2019).…”

Section: Corrosion Protection Strategiesmentioning

confidence: 95%

Rare Earth Based Magnesium Alloys—A Review on WE Series

2022

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Magnesium and magnesium alloys have attracted growing attention over the last decades as lightweight materials for a wide range of applications. In particular, WE series magnesium alloys have experienced growing interest over the last years due to their favourable mechanical properties at room and elevated temperatures. In addition, it has been reported that these rare earth-containing alloys possess superior corrosion resistance compared to other commonly used magnesium alloys, such as AZ series. This review aims at providing a concise overview of the research efforts made during recent years regarding the properties of WE series magnesium alloys (e.g., mechanical properties, corrosion behaviour), how these properties can be enhanced by controlling the microstructure of these materials, and the role of specific alloying elements that are used for the WE series. The widespread use of these materials has been limited, mainly due to their susceptibility to corrosion. Thus, in the present review, strong emphasis has been given to recent work studying the corrosion behaviour of the WE series alloys, and to protective strategies that can be employed to mitigate their degradation.

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Section: Corrosion Protection Strategiesmentioning

confidence: 95%

Rare Earth Based Magnesium Alloys—A Review on WE Series

2022

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“…As reported, permanganates, 9 molybdates, 10 cerium compounds, 11,12 zirconia, 13 zeolites, 14 and polyelectrolytes, 15 are the most common used inhibitors. Among them, cerium compounds is one of the most attractive inhibitor due to its environmental green and efficient anti‐corrosion performance 11,12,16,17 . The insoluble nature of Ce 3+ species and its propensity to oxidize to a stable Ce 4+ form make it an effective corrosion inhibitor.…”

Section: Introductionmentioning

confidence: 86%

“…Adding corrosion inhibitor directly into the organic coating layer is one of the best methods to overcome this problem, which can provide an additional protection and prolong the lifetime of the metal structure 8 . As reported, permanganates, 9 molybdates, 10 cerium compounds, 11,12 zirconia, 13 zeolites, 14 and polyelectrolytes, 15 are the most common used inhibitors. Among them, cerium compounds is one of the most attractive inhibitor due to its environmental green and efficient anti‐corrosion performance 11,12,16,17 .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of active corrosion protection waterborne polyurethane coatings using cerium modified palygorskite nanocontainers

Liu

et al. 2021

J of Applied Polymer Sci

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The development of eco‐efficient and environmental friendly active anti‐corrosion coatings for metallic substrates represents a fundamental milestone in many engineering applications. Herein, a new type of active corrosion protection coating was successfully synthesized simply based on waterborne polyurethane (WPU) and nanocontainer of Ce3+ modified palygorskite (Ce‐PAL). Particularly, the nanocontainer of Ce‐PAL was achieved via a facile and green process by cation exchange in water. Inductively coupled plasma atomic emission spectrometry (ICP) revealed that Ce3+ had successfully incorporated into PAL nanofibers with a loading amount of 10.334 g/kg. The salt immersion test, electrochemical potentiodynamic measurements and electrochemical impedance spectroscopy (EIS) demonstrated that the incorporation of Ce‐PAL only with 2 wt% into WPU led to a significant improvement of their corrosion protection properties. Finally, according to the results of scanning electron microscopy with energy dispersive X‐ray spectroscopy, the active anti‐corrosion mechanism of Ce‐PAL/WPU coating was proposed.

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“…S3b † shows the depth of local degradation on the Mg alloy, and dotted line circles represent the attack of corrosive ion on the surface. [49][50][51][52] Fig. S3c † indicates the appearance of a pinhole on the alloy surface due to coating failure.…”

Section: Afm Studiesmentioning

confidence: 99%