Passivation

Passivation is a process that makes a metal surface less reactive and more resistant to corrosion. It typically involves applying a protective layer, often through oxidizing or treating the metal, which creates a thin, stable film that shields the underlying material from environmental damage like moisture or chemicals. For example, stainless steel develops a natural passivation layer of chromium oxide that prevents rust. This process enhances durability and extends the lifespan of metal products by preventing deterioration from corrosion.