The Flow Stress Equation and Hot Processing Map of Ti+Nb-IF Steel for Tensile Deformation at High Temperature of Ferrite Area

The tensile deformation data of Ti+Nb-IF steel at high temperature of ferrite area have been fit into an express of peak stress σp and Z(T,ε·强激光与粒子束) using Gleeble-1500 thermal mechanical simulator.The deformation mechanism mainly shoues dynamic rercovery,and Q=573.33 kJ/mol,σp=100arcsinh(1.776 6×10-26ε·强激光与粒子束e6 859.6/T)-7.705 5.Through the power dissipation map and the instability map,the hot processing map was eventually obtained.