What is the process of coating ferrous metals with zinc called?

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The process of coating ferrous metals with zinc is referred to as galvanizing. This technique is primarily used to protect the metal from corrosion and rust, which can significantly decrease the lifespan of ferrous materials, such as steel or iron. When zinc is applied to these metals, it creates a protective barrier that serves as a sacrificial anode; it will corrode in place of the underlying metal, thus enhancing its durability and longevity.

Galvanizing can be performed through various methods, including hot-dip galvanizing, where the metal is submerged in molten zinc, and electrogalvanizing, where zinc is applied using electrolytic processes. This practice is commonly used in various industries, including construction, automotive, and household goods, due to the effective protection it offers against environmental degradation.

The other terms in the choices refer to different processes. Plating generally refers to applying a metal coating for decorative or protective purposes but is broader than just zinc application. Copper depositing usually pertains to applying copper coatings for conductivity or aesthetics. Crinkling does not pertain to metal coating or corrosion protection at all, but rather describes a texture or finish.

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