Beryllium and its alloys-Works best on coarse grained Be

Material: Beryllium and its alloys
Type: Macro
Method: Chemical etching
Etchant (Electrolyte): 10 ml HCl, 4 g NH4Cl, 90 ml H2O.
Procedure: Either swab or immerse at room temperature for a few minutes, rinse in water and dry.
Note: Works best on coarse grained Be.
Source: Practical Metallography, Vol. 7, No. 5, 1970, p. 268-280.

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