Abstract
The kinetics of damage accumulation in carbon steel 22k under low-cycle loading and intensive strain aging (270°C) has been experimentally investigated on the basis of the strain kinetic criterion of fatigue failure. It is shown that strain aging significantly reduces the plastic properties of the material, and the limit state is characterized by brittle catastrophic fracture. The force and deformation parameters characterizing the bearing capacity of materials and the conditions of their exhaustion under static and cyclic loading are proposed. The fairness of the application of the proposed fatigue fracture criterion to describe the kinetics of damage accumulation and limit states under low-cycle loading and intensive strain aging was confirmed.
Published Version
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