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Rust vs. corrode: what’s the difference?

The short answer

Rust specifically refers to the oxidation of iron or iron alloys, forming iron oxide. Corrode is a broader term that describes the gradual destruction of any material (not just iron) through chemical reactions with the environment.

What they have in common

Both rust and corrode refer to chemical processes that result in the deterioration of materials, commonly metals.

Examples

rust

  • The old bicycle was left outside for years, and now it is covered in rust.
  • The gate had started to rust after being exposed to the rain for so long.

corrode

  • The acidic environment caused the pipe to corrode over time.
  • Saltwater can corrode many types of metal, leading to structural damage.

Which one is more common?

Internet search results for “rust” and “corrode”

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