fig17

Figure 17. Results of multi-objective optimization, thermodynamic analysis, and constitutive modeling for the novel alloy and TA15 alloy. (A) Pareto front obtained using NSGA-II; (B) Phase distribution comparison between Pareto-optimal alloys and existing TA/TC alloys; (C) Thermodynamic phase fraction diagram of the 5-11 alloy; (D and E) Adiabatic temperature rise and true stress- strain curves of the optimized alloy and the TA15 alloy at different strain rates: (1) 2,000 s^-1; (2) 2,500 s^-1; (3) 3,000 s^-1. NSGA-II: Nondominated sorting genetic algorithm II; TA: titanium alpha; TC: titanium composite; ASB: adiabatic shear band.