Magnetron Sputtering a New Fabrication Method of Iron Based Biodegradable Implant Materials

Table 3

Results of linear polarization corrosion measurements of s-Fe samples compared literature values.

Sample	Corrosion rate	Corrosion potential
	CR (mm/year)	(V)
s-Fe as-deposited	0.06 ± 0.02	−0.487 ± 0.052
s-Fe annealed at; 400°C, 2 h	0.07 ± 0.01	−0.579 ± 0.015
s-Fe annealed at 600°C, 2 h	0.08 ± 0.04	−0.659 ± 0.016
s-Fe annealed at 800°C, 2 h	0.10 ± 0.01	−0.663 ± 0.081
E^#-Fe as-deposited [14]	0.85 ± 0.05	−0.824 ± 0.018
E^#-Fe annealed [14]	0.51 ± 0.06	−0.776 ± 0.020
Cast-iron annealed [14]	0.16 ± 0.04	−0.732 ± 0.016
Fe35Mn [15]	0.4 ± 0.1	N/A
Pure Fe [18]	0.10 ± —	−0.748 ± —
Fe(X) alloys as rolled [18]	0.10–0.18	−0.680–(−0.728)
Armco Fe annealed [19]	0.21 ± 0.04	−0.735 ± 11
UD-Fe annealed [20]	0.24 ± 0.02	−0.724 ± 4
Pure-Fe [10]	0.10 ± —	−0.748 ± —

Electroformed.
Unidirectional rolled.