Cyclic character of the evolution of the defect structure and the properties of metallic materials during megaplastic deformation

被引：5
|
作者：
Metlov L.S. [1 ,2 ]
Glezer A.M. [3 ,4 ]
Varyukhin V.N. [1 ,2 ]
机构：
[1] Donetsk Physicotechnical Institute, National Academy of Sciences of Ukraine, ul. R. Lyuksemburg, Donetsk
[2] Donetsk National University, Donetsk
[3] Bardin Central Research Institute for the Iron and Steel Industry, ul. Vtoraya Baumanskaya 9/23, Moscow
[4] Moscow State University of Instrument Engineering and Informatics, Moscow
来源：
Russian Metallurgy (Metally) | 2015年 / 2015卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
Compilation and indexing terms; Copyright 2025 Elsevier Inc;
D O I：
10.1134/S0036029515040084
中图分类号：
学科分类号：
摘要：
The principle of nonequilibrium evolution thermodynamics is applied to describe the cyclic evolution of the defect structures in metallic materials subjected to megaplastic (severe) plastic deformation. A unimodal distribution of defects over deformation-induced dislocations and the grain boundaries that appear during dynamic recrystallization is considered as an initial model. It is shown that taking into account memory (inertia) effects during deformation-induced restructuring transforms basic relations to the form characteristic of wave equations with damping. In this case, a deformed system executes damped oscillations and gradually reaches stationary structural parameters. © 2015, Pleiades Publishing, Ltd.
引用
收藏
页码：269 / 273
页数：4
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