{"title":"Dislocation Structures and Active Deformable Media","authors":"L. B. Zuev, S. A. Barannikova, V. I. Danilov","doi":"10.1134/S1063774525600462","DOIUrl":null,"url":null,"abstract":"<p>The relationship between dislocation and autowave models of plastic flow is established. It is shown that the activity of a deformed medium required for generating autowave processes of deformation is provided by the dislocation structure of the medium. The relationship between the dispersion of autowaves and the stages of plastic flow and the dislocation structures observed at each of them is analyzed and explained. A mechanism for excitation of low-frequency auto-oscillations in a deformed medium due to the elastic interaction of dislocation ensembles with moving dislocations is proposed. The mutual complementarity of the autowave and dislocation approaches to the description of plasticity is discussed.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"70 4","pages":"646 - 655"},"PeriodicalIF":0.5000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774525600462","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The relationship between dislocation and autowave models of plastic flow is established. It is shown that the activity of a deformed medium required for generating autowave processes of deformation is provided by the dislocation structure of the medium. The relationship between the dispersion of autowaves and the stages of plastic flow and the dislocation structures observed at each of them is analyzed and explained. A mechanism for excitation of low-frequency auto-oscillations in a deformed medium due to the elastic interaction of dislocation ensembles with moving dislocations is proposed. The mutual complementarity of the autowave and dislocation approaches to the description of plasticity is discussed.
期刊介绍：
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.
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