To safeguard iron piping against oxidation, manufacturers typically apply a protective coat of zinc, a procedure known as____________?
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Answer: C. Galvanization
Explanation
Galvanization is the industrial process of applying a protective zinc coating to iron or steel. This zinc layer prevents atmospheric oxygen and moisture from reaching the underlying iron. Corrosion is effectively inhibited because zinc acts as a sacrificial anode protecting the metal. Hot-dip galvanization involves submerging steel components into a bath of molten zinc at high heat. Zinc reacts with oxygen and carbon dioxide to form a durable protective carbonate patina over time. Iron rusts easily when exposed to damp air, making surface protection vital for infrastructure.
Galvanized iron piping and steel beams are widely used in construction, automotive, and outdoor fixtures. Preventing rust extends the lifespan of metal structures and reduces maintenance replacement costs. Corrosion engineering is a major field dedicated to protecting metallic materials in harsh environments. Electroplating uses electrical currents to deposit metal coatings, which is a different technique. Annealing is a heat treatment process that alters the microstructure and ductility of metals. Vulcanization is a chemical process used to harden rubber products with sulfur additives.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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