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Fe and steel - Electrolytic polishing

Material Name: Fe and steel
Recipe No.: 9942
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: 335 ml perchloric acid, 665 ml acetic acid.
Procedure (Condition): Current density: 6-7 A/cm2, temperature: <30 C, time: >4 min.
Note: For stainless steel. Dissolve 0.5% Al in bath. Agitate solution. Dangerous, explosive!. Pelliser and coworkers, Jacquet.
Reference: Vander Voort, Metallography Principles and Practice, McGraw-Hill, Inc., 1984, p. 577.