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Al-Cu alloys - Chemical etching - General macrostructure

Material Name: Al-Cu alloys
Recipe No.: 9483
Primary Chemical Element in Material: Al
Sample Type: Bulk
Uses: General macrostructure
Etchant Name: None
Type (Macro/Micro): Macro
Etching Method: Chemical
Etchant (Electrolyte) Composition: 15 ml HCl, 25 ml HNO3, 50 ml H2O.
Procedure (Condition): Etch by immersion of sample.
Note: Barker
Reference: Vander Voort, Metallography Principles and Practice, McGraw-Hill, Inc., 1984, p. 910.