dezinkifikáció

Dezinkifikáció refers to the process of removing zinc from a material, often a metal alloy. This phenomenon typically occurs in environments where zinc is susceptible to electrochemical corrosion. A common example is the dezincification of brass, which is an alloy primarily composed of copper and zinc.

When brass is exposed to certain corrosive conditions, such as water with specific chemical compositions or elevated temperatures, the zinc component can preferentially corrode. This can happen through a process where zinc dissolves, leaving behind a porous, copper-rich structure. The rate and extent of dezincification depend on factors like the water's pH, the presence of dissolved salts, flow rates, and the specific composition of the brass alloy.

Dezincification can significantly weaken and degrade the affected material, leading to reduced mechanical strength and increased porosity. This can compromise the integrity of components made from dezincification-prone materials, particularly in plumbing systems, heat exchangers, and marine applications. Understanding dezincification is crucial for selecting appropriate materials and implementing preventative measures to ensure the longevity and reliability of metal components in various industrial and domestic settings.