Adiabatic shear banding in AISI 1045 steel during high speed machining: Mechanisms of microstructural evolution

► Revealed the formation mechanisms and microstructures of ASBs. ► A deformed shear band is due to severe plastic shear deformation. ► A transformed shear band involves a process of microstructural evolution. ► A dynamic rotational recrystallization is the origin of equiaxed grains in ASBs.