Fig. 1. Phase diagram stimulated for Ni18Cr9Co9Fe5Nb3Mo by JMatPro.

Fig. 2. Micrographs of initial microstructure: (a) OM micrograph for chemical etched samples, (b) SEM micrograph for electrolytically etched samples.

Fig. 3. Flow curves of hot compression under different temperatures: (a) 1150 °C, (b) 1100 °C, (c) 1050 °C and (d) 1000 °C for the nickel-based superalloy.

Fig. 4. Linear fits to calculate activation energy: (a) ${\text{ln}}\dot \varepsilon$ versus ln σp, (b) ${\text{ln}}\dot \varepsilon$ versusσp, (c) ${\text{ln}}\dot \varepsilon$ versus ${\text{lnsinh}}\alpha {\sigma _{\text{p}}}$, (d) ${\text{lnsinh}}\alpha {\sigma _{\text{p}}}$ versus.1000/T.

Fig. 5. Linear fit of ln Z versus ${\text{lnsinh}}\alpha {\sigma _{\text{p}}}$.

Fig. 6. Parameters of n and Q and their polynomial fits.

Fig. 7. Polynomial fit of ${\text{f}}\left( {{\text{ln}}\dot \varepsilon } \right)$ versus ${\text{ln}}\dot \varepsilon$.

Fig. 8. Activation energy map for Ni18Cr9Co9Fe5Nb3Mo superalloy.

Fig. 9. Residual error for different calculation processes: (a) TF method, (b) TR method, (c) M method.

Fig. 10. Scatter diagrams for both traditional and evaluated Zener-Hollomon parameters: (a) Z parameter acquired by modified method, (b) Y parameter, (c) contrast of Zt, Zm and $Z_{\text{m}}^{\text{'}}$.

Fig. 11. IPF maps of the samples deformed at: (a) 1150 °C & 0.001 s-1, (b) 1100 °C & 0.01 s-1, (c) 1000 °C & 0.001 s-1, (d) 1050 °C & 0.01 s-1..

Fig. 12. Recrystallization volume fraction for deformed at 1150 °C & 0.001 s-1, 1100 °C & 0.01 s-1, 1000 °C & 0.001 s-1, 1050 °C & 0.01 s-1.