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Carbon steels - Electrolytic polishing

Material Name: Carbon steels
Recipe No.: 686
Primary Chemical Element in Material: Fe
Sample Type: Bulk
Uses: Polishing
Etchant Name: None
Type (Macro/Micro): Micro
Etching Method: Electrolytic polishing
Etchant (Electrolyte) Composition: 50 ml perchloric acid (70%), 1000 ml acetic acid conc.
Procedure (Condition): 25-30 V dc, stainless steel cathode, below 25 C (77 F).
Note: Carbon steels, low and high alloy steels, Stainless steels.
Reference: H. Modin and S. Modin, Metallurgical Microscopy, Butterworths, London, 1973, p. 352.