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How Sacrificial Protection Prevent Rusting?

Alexander Ross • • 6 min read
How Sacrificial Protection Prevent Rusting?

Sacrificial protection
Magnesium and zinc are often used as sacrificial metals. They are more reactive than iron and lose their electrons in preference to iron. This prevents iron from losing its electrons and becoming oxidised.

How does sacrificial anode prevent rusting of iron?

A sacrificial anode is a block of metal that is more reactive than iron. The more reactive a metal is the easier it gives away electrons. This reactive block of metal acts as a source of electrons for the iron. ... If we wrap zinc around an iron nail the nail is protected from rusting.

How does sacrificial coating prevent corrosion?

Sacrificial Coatings

Corrosion of the sacrificial zinc results in its oxidation; the iron is reduced, which renders it cathodic and inhibits its corrosion. A galvanized surfaceProtecting iron alloys with a coating of a more active metal through the process of galvanizing prevents the alloys from corroding.

Alexander Ross
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Alexander Ross

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.