Enhanced corrosion resistance of Mg alloy embedded in Cl--containing Portland cement with the formation of CaCO3-coated Mg(Al)O passive film via one-step pulse electrodeposition
Source abstract
Abstract
In this study, a novel CaCO 3 /Mg(Al)O coating system was successfully synthesized via one-step pulse electrodeposition. The thickness of inner passivation layer and outer CaCO 3 layer was tailored by modulating the pulse voltage. Anticorrosion performance of the coated Mg alloy was assessed by both electrochemical methods and embedment tests. The coated Mg alloy demonstrated improved corrosion resistance, attributed to the synergistic impact of a compact outer CaCO 3 layer and an Al-assisted inner passivation layer. Both layers` quality primarily governed the alloy`s anticorrosion performance. Remarkably, embedment tests revealed a re-passivation phenomenon instead of corrosion, with its mechanism discussed comprehensively.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Magnesium Alloys: Properties and Applications · Concrete Corrosion and Durability
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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