| Popis: |
The article deals with the fracture mechanism of thermomechanically processed low-carbon steel tested at low temperatures The low temperature impact toughness of the low-carbon Fe360 steel was defined in the initial (as delivered) state and after its combined treatment: quenching and equal channel angular pressing (ECAP) as well as quenching, equal channel angular pressing, and annealing. It was stated that the combination of quenching and the equal channel angular pressing provided higher strength and led to increased resistance to brittle fracture. Post-deformation annealing, due to high ductility of the material, allows for higher values of impact toughness and power intensity of fracture. |
