Electropolishing (Available Dec 1, 2021)
Electropolishing is an effective way to passivate a stainless steel surface. This process creates a passive surface, enhancing corrosion resistance and reducing particle generation.
An electric current is run between two cathodes through a tank of electrolyte, an acidic fluid, and the component to be polished is immersed in the fluid to form the anode. When the current is switched on, metallic ions from the peaks on the surface of the component move to the cathodes, creating a very smooth finished surface.