Fig. 4
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(a) Comparison of different hardening laws for the modelling of the experimental flow curves at different hot forming temperatures for the strain rates of (a) 0.01 s−1 (b) 0.1 s−1, and (c) 1 s−1; (d) representative extrapolated flow curves extending to higher true strains for the hot forming temperature of 550 °C and the strain rate 0.1 s−1.
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