Magnetic-Acoustic Feature Extraction and Damage Fusion Evaluation of 45 Steel Specimens during Fatigue Process for Remanufacturing

Table 1

Elemental mass fraction of 45 steel specimens.

Element	Mn (%)	Cr (%)	Co (%)	P (%)	S (%)	C (%)	Si (%)	Cu (%)	Ni (%)	Fe
Percentage	0.66	0.21	0.081	0.019	0.025	0.45	0.22	0.18	0.21	Bal.