Cyclic cracking resistance of low-alloy and carbon structural steels hardened by tensile deformation and heat treatment

Cold drawing deformation of structural steels increases the yield limit of the materials while retaining sufficiently high ductility and toughness. Consequently, in a number of cases the users of constructional rolled metal stock give preference to hardening by cold drawing in comparison with thermal hardening. This treatment is applied to, in particular, low-alloy structural steels. Taking into account the large volume of production of these steels, it is easy to see that the production of material with high strength by this method is associated with a high consumption of scarce alloying elements. The aim of this work was to obtain data for reinforcement steels and carry out a comparative analysis of the variation of the properties during cyclic loading of hot rolled and thermally hardened cold-deformed steels. 12 refs., 7 figs., 1 tab.