New insights into the effects of deformation below-M S on isothermal kinetics of bainitic transformation

Both ausforming and austempering below the martensite start temperature (M S ) have been shown to accelerate the bainitic transformation. This work investigates the combined effects of deformation and austempering below the M S on the isothermal transformation kinetics, microstructure, and hardness in a medium-carbon bainitic steel. The results show that, deformation below the M S can delay the onset of the baintic transformation compared to …