Alloy No. 25-Chemical etching

Material: Alloy No. 25
Type: Micro
Method: Chemical etching
Etchant (Electrolyte): 50 ml HCl (conc.), few drops of H2O2 (30%) added at a time, until first sign of solution decompeses-remove specimen.
Procedure: No data.
Note: No. 25 alloy.
Source: Practical Metallography, Vol. 10, No. 7, 1973, p. 407-413.

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