Fig. 1. Optical micrograph of Fe-20Mn-12Cr-3Ni-3Si alloy.
Fig. 2. TEM micrographs of 18% cold rolled Fe-20Mn-12Cr-3Ni-3Si alloy. a) Bright field, b) SADP and indexing of SADP.
Fig. 3. TEM micrographs of reversed austenite in 18% cold rolled Fe-20Mn-12Cr-3Ni-3Si alloy, after annealing at 700°C for 20 min. a) Bright field, b) SADP and indexing of SADP.
Fig. 4. TEM micrographs of showing the effect of the thermo-mechanical treatment in Fe-20Mn-12Cr-3Ni-3Si alloy. a) 1Cycle, b) 3 Cycle.
Fig. 5. Phase map showing the effect of cycle number of the thermo - mechanical treatment on the martensite formation in Fe-20Mn-12Cr-3Ni-3Si alloy. a) 1 Cycle, b) 5 Cycle.
Fig. 6. Effect of cycle number of the thermo-mechanical treatment on the volume fraction of each phase in Fe-20Mn-12Cr-3Ni-3Si alloy.
Fig. 7. Effect of cycle number of thermo-mechanical treatment on the grain size of Fe-20Mn-12Cr-3Ni-3Si alloy.
Fig. 8. Effect of cycle number of the thermo-mechanical treatment on tensile properties of Fe-20Mn-12Cr-3Ni-3Si alloy.
Fig. 9. Effect of volume fraction of ε-martensite on thetensile properties of thermo-mechanical treated Fe-20Mn-12Cr-3Ni-3Si alloy.
Fig. 10. Effect of volume fraction of martensite on the tensile properties of thermo-mechanical treated Fe-20Mn-12Cr-3Ni-3Si alloy.
Table 1. Chemical composition of specimen (wt.%)
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