3.2.2. Compensation of strainFrom Eq 10, it is clear that the flow stress depends only on the deformation temperature and strain rate, and the effect of strain is not considered. Nevertheless, many previous reports have also illustrated that the strain has a significant effect on the , , and value [32–33]. Therefore, the strain compensation should be taken into Arrhenius model to predict the flow stress more accurately. According to the aforementioned calculation process, the values of , , and at different strain are shown in Fig. 8. In this study, the relationship between , , and and strain was fitted by a fifth order polynomial function, as shown in Eq. (11). Fig. 8 shows the result of fitting curves, and the polynomial fitting coefficients of , , and of the alloy are provided in Table 2. (11) Therefore, the flow stress at a particular strain can be predicted by a function of the Zener–Holloman parameter: