On the physical basis of deformation and destruction of metals
Abstract
According to modern views, all metals are a crystalline spatial lattice of ions in its nodes and free (socialized) electrons. The process of metal deformation is usually divided into three stages: 1) elastic (reversible) deformation, in which the distances between the elements of the atomic lattice change without changing the structure of the substance; 2) plastic (irreversible) deformation, in which local changes occur in the structure of the metal, associated mainly with a change in the size and shape of crystals and deformation of the intermediate layers; 3) destruction. In order to form a correct idea of the overall strength of the material, it is necessary to evaluate its behavior in all three stages. The division of the deformation process into three stages is purely conditional. In reality, in the elastic section, there is also a small plastic deformation, in the section of plastic deformation, both elastic deformation occurs and processes directly associated with the destruction of the material are generated (see article).
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