pasivasyonu

Pasivasyonu, also known as passivation, is a surface treatment process applied to metals to prevent corrosion. It involves creating a protective, inert layer on the metal's surface, typically through chemical means. This layer, often composed of oxides or other compounds, acts as a barrier, significantly reducing the metal's reactivity with its environment.

The most common application of passivation is on stainless steel. Stainless steel's inherent corrosion resistance comes from a naturally occurring passive layer of chromium oxide. However, during manufacturing, fabrication, or exposure to harsh conditions, this layer can be compromised. Chemical passivation treatments, often using nitric acid or citric acid solutions, are employed to remove contaminants and restore or enhance the passive oxide layer, ensuring optimal corrosion resistance.

Other metals besides stainless steel can also benefit from passivation. For instance, aluminum can be passivated to improve its durability and resistance to atmospheric corrosion. The specific passivation method and chemicals used depend on the type of metal and the desired level of protection. The process is crucial in industries where metal components are exposed to corrosive environments, such as aerospace, medical devices, and food processing, to ensure product longevity and safety.