Scale invariance of plastic deformation of the planar and crystal subsystems of solids under superplastic conditions
- Autores: Egorushkin V.1, Panin V.1
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Afiliações:
- Institute of Strength Physics and Materials Science, Siberian Branch
- Edição: Volume 20, Nº 1 (2017)
- Páginas: 1-9
- Seção: Article
- URL: https://journals.rcsi.science/1029-9599/article/view/191883
- DOI: https://doi.org/10.1134/S1029959917010015
- ID: 191883
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Resumo
The theory of structural transformations in the planar sybsystem (surface layers and internal interfaces) of solids under plastic deformation is developed. The theory is based on a consideration for local curvature of the crystal lattice, with new structural states arising in its interstices, responsible for plastic distortion. To satisfy the superplastic condition, such high-rate mechanisms should develop in both planar and 3D crystal subsystems. In a translation-invariant crystal, this condition is met by concentration fluctuations. The multiscale criterion of superplasticity is formulated based on the scale invariance of plastic deformation of the planar and crystal subsystems in a deformable solid. Beyond the criterion, superplasticity passes to the creep mode with restricted plasticity of the material.
Sobre autores
V. Egorushkin
Institute of Strength Physics and Materials Science, Siberian Branch
Email: paninve@ispms.tsc.ru
Rússia, Tomsk, 634055
V. Panin
Institute of Strength Physics and Materials Science, Siberian Branch
Autor responsável pela correspondência
Email: paninve@ispms.tsc.ru
Rússia, Tomsk, 634055