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Structural Transformations in Copper during High-Speed Deformation upon the Convergence of a Massive Cylindrical Shell under Implosion

  • STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION
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Abstract

The deformation structure in copper that forms upon the convergence of a massive cylindrical shell into a cylinder is studied in this work. The shell in the deformation zone was subjected to high-speed deformation (~104 1/s) with large values of true strain (e varied from 0.8 to 2.0). It is shown that two types of structures were formed under deformation: regions containing disperse grains with high-angle boundaries and twins and regions with deformation cells having low-angle boundaries. It is found that the twins that arose at the early stages of deformation are distorted upon further deformation: their rectilinear boundaries are bent, the orientation relationships with the matrix are violated, and high-angle boundaries of arbitrary orientation are formed.

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Funding

This work was carried out within the theme “Structure” (project no. AAAA-A18-118020190116-6).

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Authors and Affiliations

  1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620108, Ekaterinburg, Russia

    V. I. Zel’dovich, N. Yu. Frolova, A. E. Kheifets & I. V. Khomskaya

  2. All-Russian Research Institute of Technical Physics, 456770, Snezhinsk, Chelyabinsk oblast, Russia

    E. V. Shorokhov

Authors
  1. V. I. Zel’dovich
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  2. N. Yu. Frolova
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  3. A. E. Kheifets
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  4. I. V. Khomskaya
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  5. E. V. Shorokhov
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Correspondence to V. I. Zel’dovich.

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Translated by E. Chernokozhin

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Zel’dovich, V.I., Frolova, N.Y., Kheifets, A.E. et al. Structural Transformations in Copper during High-Speed Deformation upon the Convergence of a Massive Cylindrical Shell under Implosion. Phys. Metals Metallogr. 121, 446–451 (2020). https://doi.org/10.1134/S0031918X20050154

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  • DOI: https://doi.org/10.1134/S0031918X20050154

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