Applying current to a rusted piece of metal can facilitate the removal of rust through electrolysis, as detailed on the referenced website. However, while this method can effectively remove oxides, it does not restore the original mechanical strength of the substrate, leaving behind a powdery residue rather than reintegrating the metal atoms. Proper potential application can either retard or accelerate corrosion, emphasizing the importance of understanding electrochemical principles in rust removal.
PREREQUISITESMetalworkers, DIY enthusiasts, and anyone involved in metal restoration or maintenance will benefit from this discussion, particularly those interested in electrochemical rust removal techniques.
There is a website giving a method of removing rust using electrolysis, http://myweb.tiscali.co.uk/andyspatch/rust.htm.Dr. Courtney said:Applying the proper potential can retard corrosion, and the opposite potential can greatly speed up corrosion.
But the oxides are not great conductors, and even if you get the unozidized metal atoms back, they will no longer be part of the substrate in the sense of adding mechanical strength - more of a powder on top.