Why do zinc coatings have an intermetallic film?

This results in the formation of an intermetallic film between the zinc coating and the steel substrate, which helps prevent the formation of Fe-Zn intermetallic phase or “outbursts” that could negatively impact the mechanical properties of the final coating [8, 9, 10].

What is the composition of zinc-aluminum-magnesium alloy coating?

Author to whom correspondence should be addressed. In this work, the composition of the zinc–aluminum–magnesium alloy coating was designed to have a fixed aluminum–magnesium ratio of 1:1, while the content of aluminum and magnesium elements increases gradually within the range of 1–2 wt.%.

Does aluminum & magnesium affect coating structure?

In recent years, lots of scholars and experts have investigated the effects of aluminum or magnesium on the coating structure, alloy phase and corrosion resistance, but few focus on the effects of both aluminum and magnesium elements on the coating under the fixed volume ratio, which really reflects the actual production process.

Does zinc-aluminum-magnesium (Zn-Al-Mg) coating protect against corrosion?

The failure process of Zn-Al-Mg coating is introduced. Sacrificial metallic coatings are an effective strategy for mitigating corrosion in steel operating in industrial environments. This review article focuses on examining the protection mechanism of zinc-aluminum-magnesium (Zn-Al-Mg) coatings on steel substrates.

Is zinc aluminum magnesium coated steel corrosion resistant?

In this work, a novel zinc–aluminum–magnesium (Zn-Al-Mg, ZM) coated steel was prepared using the hot-dip method. The microstructure and corrosion resistance of the ZM-coated steel were investigated.

What is zinc aluminum magnesium (znalmg)?

Zinc–aluminum–magnesium (ZnAlMg), as the innovation of hot-dip plating technology in recent decades, has attracted more and more enterprises, universities and research institutes for its excellent corrosion resistance and edge cutting self-healing [6, 7, 8, 9, 10].