|
Treatment : spheroidised
Magnification : 200 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
partial renewed formation of pearlite
caused by surface decarburization |
Treatment : spheroidised
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
partial renewed formation of pearlite
caused by surface decarburization |