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Rh alloys - Electrolytic etching

Material Name: Rh alloys
Recipe No.: 10977
Primary Chemical Element in Material: Rh
Sample Type: Bulk
Uses: General microstructure
Etchant Name: None
Type (Macro/Micro): Micro
Etching Method: Electrolytic
Etchant (Electrolyte) Composition: 65 ml distilled water, 20 ml HCl, 25 g NaCl.
Procedure (Condition): Use 10 V ac, 25 s, graphite cathode.
Note: No data
Reference: Vander Voort, Metallography Principles and Practice, McGraw-Hill, Inc., 1984, p. 682.