Galvanisation is considered effective in preventing rusting because zinc is more reactive than iron, so it acts as a sacrificial coating, corroding instead of the iron or steel substrate. Additionally, the zinc coating provides a physical barrier between the iron or steel and the surrounding environment, preventing direct contact with oxygen and moisture, which are necessary for rusting.
Share
Galvanization is effective in preventing rusting due to the formation of a zinc layer over the metal surface. Zinc acts as a sacrificial anode, corroding preferentially to protect the underlying iron or steel from oxidation. This sacrificial protection mechanism, along with the physical barrier provided by the zinc coating, prevents moisture and oxygen from reaching the metal surface, inhibiting rust formation. Additionally, zinc oxide, formed during corrosion, offers self-healing properties, further enhancing protection. Galvanized coatings are durable and resistant to environmental factors, making them a reliable and cost-effective solution for rust prevention in various industries.
Galvanization is considered effective in preventing rusting because it creates a protective layer on iron or steel surfaces. Zinc, applied through galvanization, is more reactive than iron. When the coated metal is exposed to environmental conditions, zinc sacrificially corrodes, forming a layer of zinc oxide that acts as a barrier. This prevents corrosive elements like oxygen and moisture from reaching the underlying iron. Even if the zinc coating is scratched or damaged, the sacrificial protection continues, ensuring prolonged resistance to rust. Galvanization provides a durable and cost-effective solution widely employed in various applications, including construction, automotive, and infrastructure.