Can you please explain how a galvanised iron article is still protected from rustin when its zinc coating is broken?
Asked by SrijanSood
| 5th Sep, 2010,
12:00: PM
Expert Answer:
Zinc is more reactive than iron . therefore ,even if the coating is damaged, then the iron or steel continues to be protected by sacrificial corrosion, a phenomenon in which atmospheric oxidation spares the iron and affects the zinc
Answered by
| 6th Sep, 2010,
10:04: AM
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