B17426 Micrograph

 

 

Inv. B17426
Chisel
An entire cross-section cut from the narrower end, 200x (left) and 400x (right)
Etchant: Ammonium hydroxide + hydrogen peroxide + alcoholic ferric chloride
(Sn, 9.7%; As, 1.6%; Ni, 0.41%)

A description of the microstructure is in preparation.

Microhardness: VHN: 189 ± 14 (n=5)
Uniform;