Abstract
In this paper, the general laws of localized plastic flow development are described for the linear work hardening stages of nineteen metals. The correlations are established and discussed between their element position in the periodic table of elements and the parameters of the autowave process of localized plastic flow in these elements. Patterns of plastic flow are considered for nineteen metals from the 3rd, 4th, 5th, and 6th periods of the periodic table of elements. A conditional characteristic of plasticity is introduced and its relationship with the position of the metals in the periodic table of elements is established. Correlations between the plastic properties and other metal characteristics were analyzed. Some quantitative models are proposed for explaining the observed dependency origin by the drag of moving dislocation by electron gas in metal crystals. Observed correlations indicate the existence of a close bond between localized plastic flow in deforming medium with the lattice characteristics of the elements and their electron structures.
Highlights
One of the fundamental questions of physics and materials science is the prediction of the physical and chemical properties of materials based on the periodic law and the correlation of properties
Our analysis demonstrated that the plasticity parameter, (λ·Vaw ) oscillates in its average value at least within 12 Mg ≤ Z ≤ 82 Pb
The present study elucidates several features of localized plasticity of metals related to their position in the periodic table of elements
Summary
One of the fundamental questions of physics and materials science is the prediction of the physical and chemical properties of materials based on the periodic law and the correlation of properties. Periodic changes in the values of Young’s modulus, shear modulus, bulk modulus of elasticity, and compressibility, with continuous growth of their positions in the periodic table of elements Z, are already well known [1,2]. In [3], the dependence of the work function of an electron on the atomic number of an element was constructed. A certain periodicity is observed depending on the value of the work function of the electron of metals on the atomic number. The maxima correspond to d-metals with an face-centered cubic (FCC) structure (rhodium, palladium, iridium, and platinum), while local minima are observed in the regions of niobium and rhenium. Numerous estimates of the theoretical strength of metals lead to an approximate relationship between theoretical strength and
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