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Physics of Metals and Metallography

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01.05.2020 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

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

verfasst von: V. I. Zel’dovich, N. Yu. Frolova, A. E. Kheifets, I. V. Khomskaya, E. V. Shorokhov

Erschienen in: Physics of Metals and Metallography | Ausgabe 5/2020

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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.

Vorheriger Artikel Design and Development of P/M Fe–P Based Magnetic Friction Material

Nächster Artikel Influence of the Initial Treatment on the Structure of Hafnium Bronze upon High-Speed Pressing

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Titel: Structural Transformations in Copper during High-Speed Deformation upon the Convergence of a Massive Cylindrical Shell under Implosion
verfasst von: V. I. Zel’dovich
N. Yu. Frolova
A. E. Kheifets
I. V. Khomskaya
E. V. Shorokhov
Publikationsdatum: 01.05.2020
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 5/2020
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X20050154

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