Research Article
Effect of Isothermal Treatment on Microstructure and Mechanical Properties of Cold-Deformed IF Steel
Table 2
Mechanical properties of IF steel as a function of recrystallisation time.
| | Recrystallisation treatment time (s) | Young’s modulus, E (GPa) | Yield strength, Yc (MPa) | Ultimate tensile strength, UTS (MPa) | Deformation percent, e (%) | Grain size (μm) |
| | 0 | 58.7 ± 2 | 426 ± 3 | 613 ± 3 | 3 ± 0.1 | — | | 60 | 55.9 ± 2 | 364 ± 3 | 527 ± 3 | 5.3 ± 0.1 | 2.5 ± 0.1 | | 120 | 74 ± 2 | 342 ± 3 | 425.5 ± 3 | 13.9 ± 0.1 | 4.9 ± 0.1 | | 180 | 111 ± 2 | 147.4 ± 3 | 327.3 ± 3 | 32.8 ± 0.1 | 8.0 ± 0.1 | | 240 | 132 ± 2 | 157 ± 3 | 341 ± 3 | 37.4 ± 0.1 | 10.8 ± 0.1 | | 300 | 28.6 ± 2 | 130 ± 3 | 316 ± 3 | 45.6 ± 0.1 | 11.9 ± 0.1 | | 360 | 47.6 ± 2 | 120 ± 3 | 310 ± 3 | 48.2 ± 0.1 | 15.2 ± 0.1 | | 420 | 63.5 ± 2 | 108.4 ± 3 | 294 ± 3 | 52 ± 0.1 | 17.1 ± 0.1 |
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