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Average grain size and mechanical properties of the as-received and annealed pure iron samples.
| Material | Average grain size (μm) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation at break (%) |
|---|---|---|---|---|
| As-received | 29.6 ± 4.0 | 170 ± 2 | 270 ± 5 | 49.3 ± 3.5 |
| 85%UR-550 | 14.1 ± 1.3 | 236 ± 13 | 287 ± 7 | 46.1 ± 4.2 |
| 75%UR-800 | 28.1 ± 2.9 | 104 ± 2 | 238 ± 5 | 47.0 ± 4.1 |
| 85%UR-1000 | 168.0 ± 28 | 93 ± 9 | 173 ± 17 | 17.2 ± 6.4 |
