Surface decarburization 1.8159 spheroidised
Treatment : spheroidised
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
surface decarburization 0,15 mm deep
The usual form of surface decarburization,
for spheroidised structural and tool steels, is a reduction of the amount of carbides.
An even removal of the carbide density has to be usually stated. The amount of free
ferrite is partly raising at the same time.
