Hello All,
I am trying to figure out the reasoning behind the selection of electrode materials used in electrolytic etching. I know that stainless steel and platinum are the most common materials used as the electrodes, but I am wondering why. I assume it has something to do with electronegativity to ensure the electrodes are more "noble" than the sample to be etched, but maybe it has more to do with corrosion resistance?
Basically my goal with the question is to ensure I am using an appropriate material for electroetching nickel based alloys while keeping a reasonable price point for the electrode materials. I am also interested in understanding the reasons for electrode material selection.
Thanks!
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Alex
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