A. Yu. Eroshenko, E. V. Legostaeva, I. A. Glukhov, A. I. Tolmachev, P. V. Uvarkin, Yu. P. Sharkeev
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引用次数: 0
Abstract
The paper investigates the influence of the ultrafine-grained (UFG) structure of Ti–42Nb–7Zr and Mg–2.9Y–1.3Nd alloys on their substructure and strain behavior induced by quasi-static tension. It is shown that the ultrafine grain (UFG) structure provides changes in stress-strain curves. Structural transformations due to quasi-static tension are described for both ultrafine- and coarse-grained structures of these alloys. The alloys with the coarse-grained structure demonstrate the formation of localized deformation bands with misoriented network substructure. The UFG Ti–42Nb–7Zr alloy structure is characterized by the formation of larger equiaxial grains with a lower dislocation density that indicates to a localized alloy softening before fracture. The fracture of the UFG Mg–2.9Y–1.3Nd alloy demonstrates the cellular-network substructure.
期刊介绍：
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
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