Passivation
Passivation
Passivation is a chemical process used to enhance the corrosion resistance of stainless steel and other metals by creating a protective passive oxide layer on their surfaces. It involves the removal of free iron and other contaminants from the metal surface, followed by the formation of a thin, inert oxide layer that acts as a barrier against corrosion.
The benefits of passivation include:
Corrosion Resistance: Passivation forms a protective oxide layer on the metal surface, reducing its susceptibility to corrosion from environmental factors, chemicals, and other corrosive agents.
Improved Aesthetics: Passivation can enhance the appearance of stainless steel, giving it a brighter, more uniform finish.
Increased Cleanliness: Passivation removes surface contaminants, promoting a cleaner and more sanitary surface, particularly important in industries such as food processing, pharmaceuticals, and medical devices.
Maintenance of Alloy Properties: Passivation helps maintain the properties and performance characteristics of the metal alloy, such as its mechanical strength, hardness, and resistance to pitting or crevice corrosion.
Passivation is commonly used in various industries where stainless steel or other corrosion-resistant metals are employed, including aerospace, automotive, chemical processing, marine, and healthcare.