Abstract
In the current paper, the main regularities in fracture of the railway axle steel have been found. It is established that the energy intensity of the steel fracture is connected with the deformational manifestations at the meso and macrolevels. As a part of the methodology of mesomechanics, the deformation behavior of the locomotive axis material has been described, taking into account the interaction between the processes that take place at different scale levels under the impact loading of Charpy specimens. A special role is given to the investigation of the local response of the material at the mesolevel, where the stress–strain state is characterized by a significant nonuniformity, and leads to the formation of shear lips. The shear lip parameters are found to be linearly and depend on the energy intensity of the impact deformation and fracture of the material. The additional evaluation parameters of the energy intensity of deformation and fracture of Charpy specimens can be tore out on the surface and micromechanisms of fracture.
Published Version
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