Rusting metal. Rust (brown and orange areas) is iron oxide, formed when moisture and air act on unprotected metal surfaces containing iron or steel (a

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Rusting metal. Rust (brown and orange areas) is iron oxide, formed when moisture and air act on unprotected metal surfaces containing iron or steel (an alloy of carbon and iron). As here, this can weaken the structure, causing flakes to break off.

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Photo credit: © TONY CRADDOCK/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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