|
Treatment : untreated
Magnification : 100 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
surface decarburization 0,24 mm deep |
Treatment : untreated
Magnification : 1000 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
microstructure consist of sorbite with small amounts of
cementite on the grain boundaries in the core segregation |