Study on Thermal Deformation and Recrystallization Behavior of Cu-P Weathering Steel

Under different deformation temperatures and strain rates, the thermal deformation process of Cu-P weathering steel was studied using Gleeble1500D-type thermal simulator. After the high temperature rheopectic curves at different conditions and thermal deformation equation was got, the dynamic recrystallization diagram of the steel was plotted. The results show that the thermal deformation activation energy of the steel is 345kJ/mol, and the dynamic recrystallization diagram of the steel consisits of three parts as completely dynamic recrystallization zone, partially dynamic recrystallization zone and non-dynamic recrystallization zone.