When two or more dissimilar metals come into contact with each other, in the presence of an electrolyte in a conductive liquid, chemical corrosion occurs when contacting and connecting. The less inert metal becomes the anode, and the more inert metal becomes the cathode.
Moreover, the anode metal will continuously generate ions that move to the cathode, causing the anode metal itself to be corroded. The above are the situations that may cause electrochemical corrosion of stainless steel.
