Carburization at the inert gas annealing
Treatment : spheroidised
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
microstructure in the uninfluenced area
hardness HV 1 : 152 , 150 , 157
Treatment : quenched
Magnification : 50 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
carburization ca. 0,50 mm deep