|
Treatment : normalised (sample
from steel bars 70 mm)
Magnification : 200 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
ca. 70 % ferrite ; 30 % pearlite and sorbite
|
Treatment : normalised (sample from steel
bars 70 mm)
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
ca. 70 % ferrite ; 30 % pearlite and sorbite
|