What occurs on steel when oxidation happens?

What occurs on steel when oxidation happens?

• A. Rust
• B. Corrosion
• C. Erosion
• D. Hydrogen embrittlement

Answer: (A)

Oxidation of steel produces rust—the reddish oxide that forms when iron reacts with oxygen in the presence of moisture. Rust is the iron-specific product of the oxidation process and is a type of corrosion, the broader degradation that occurs via electrochemical reactions. Erosion is physical wear from mechanical action, not a chemical oxide, and hydrogen embrittlement is a separate issue where hydrogen weakens the metal’s lattice. So, when steel undergoes oxidation, the visible and damaging outcome is rust.

Oxidation of steel produces rust—the reddish oxide that forms when iron reacts with oxygen in the presence of moisture. Rust is the iron-specific product of the oxidation process and is a type of corrosion, the broader degradation that occurs via electrochemical reactions. Erosion is physical wear from mechanical action, not a chemical oxide, and hydrogen embrittlement is a separate issue where hydrogen weakens the metal’s lattice. So, when steel undergoes oxidation, the visible and damaging outcome is rust.