Formation of friction martensite at the drawing - 1.6582
Treatment : spheroidised
Magnification : 10 : 1
Etching medium :
Sampling / Specification : wire surface
Testing result :
narrow strip with a rough surface and in places
weak scaly burst
Treatment : spheroidised
Magnification : 25 : 1
Etching medium :
Sampling / Specification : wire surface
Testing result :
narrow strip with a rough surface and local
weak scaly burst