Zinc layer on a plate out of 1.0570
Treatment : normalised
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
ca. 90 % ferrite ; 10 % pearlite
Treatment : normalised
Magnification : 1000 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
ca. 90 % ferrite ; 10 % pearlite