Copper and copper alloys-Cold worked brasses

Material: Copper and copper alloys
Type: Micro
Method: Electrolytic etching
Etchant (Electrolyte): 10 ml (NH4)C2H3O2, 30 ml Na2S2O3, 30 ml NH4OH, 30 ml water.
Procedure: 30 A/dm2, time varies with composition and previous treatment of specimen.
Note: Cold worked brasses.
Source: Metallography, Structures and Phase Diagrams, Metals Handbook, 8th Edition, Vol. 8, ASM (American Society for Metals), Metals Park, Ohio 44079, USA, 1973, p. 132.

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