Scab on the surface - 1.7034
Treatment : spheroidised
Magnification : 50 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
pre-material defect ; scab 0,22 mm deep
Treatment : spheroidised
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
above - pre-material defect ; scab
below - rod wire