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Weck's tint etch for alpha Ti-Chemical etching
Material: Weck's tint etch for alpha Ti
Method: Chemical etching
Etchant (electrolyte): 5 g NH4FHF, 100 ml water.
Procedure: For pure Ti, immerse a few seconds, longer times for Ti alloys.
Note: Colors vary with grain orientation.
Source: This data accompanied an article written by George Vander Voort and originally appeared in the March, 1985 edition of Metal Progress "the monthly magazine of ASM International from 1930 to 1986.