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

Table 2

Measured mechanical properties of s-Fe after different annealing treatments and published literature values.

Sample	Yield strength (MPa)	Ultimate tensile strength (MPa)	Strain at fracture (%)
s-Fe as-deposited	606 ± 33	634 ± 33	1.4 ± 0.1
s-Fe annealed at 400°C, 2 h	604 ± 19	616 ± 9	1.6 ± 0.4
s-Fe annealed at 600°C, 20 min	612 ± 20	638 ± 10	1.3 ± 0.2
s-Fe annealed at 600°C, 1 h	568 ± 23	584 ± 33	2.0 ± 0.5
s-Fe annealed at 600°C, 2 h	381 ± 29	413 ± 9	13 ± 3.6
s-Fe annealed at 800°C, 2 h	267 ± 7	343 ± 4.7	20 ± 2.6
E^#-Fe annealed at 550°C [14]	270 ± 6	292 ± 14	18.4 ± 4
E^#-Fe annealed at 600°C [14]	130 ± 7	169 ± 9	32.3 ± 5
Cast iron annealed at 550°C [14]	140 ± 10	205 ± 6	25.5 ± —
Fe35Mn [15]	234 ± 7	428 ± 7	32.0 ± 0.8
Armco Fe annealed [19]	170 ± —	270 ± —	49.3 ± —
Fe(X) alloys as cast [18]	100–220	200–360	10–25
Fe(X) alloys as rolled [18]	360–450	430–850	5–9
UD-Fe [20]	593 ± 2	600 ± 8	3.5 ± 2
UD-Fe annealed [20]	246 ± 3	283 ± 5	34.8 ± 8
WE43 Mg alloy [8]	198 ± —	277 ± —	17 ± —
316L SS [3]	190 ± —	490 ± —	40 ± —

Electroformed.
Unidirectional rolled.