Structural–Temporal Peculiarities of Dynamic Deformation of Nanostructured and Nanoscaled Metals

N. S. Selyutina; E. N. Borodin; Yu. V. Petrov

doi:10.1134/S1063783418090275

Structural–Temporal Peculiarities of Dynamic Deformation of Nanostructured and Nanoscaled Metals

N. S. Selyutina, E. N. Borodin, Yu. V. Petrov

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Abstract

The evolution of a structural–temporal integral criterion of yielding is reported for the description of the dynamic deformation of metals. The values of characteristic relaxation times, considered as the constants of the material, are shown to be suitable for the description of dynamic effects upon the nanomaterial deformation in a wide range of loading rates. Three various ways of the determination of characteristic relaxation time of nanomaterials are discussed. The behavior of the ultimate stress in the range of pulse duration from one and two points of change in the dominant mechanism of rate sensitivity is interpreted in the context of integral criterion of yielding.

Original language	English
Pages (from-to)	1813-1820
Number of pages	7
Journal	Physics of the Solid State
Volume	60
Issue number	9
Early online date	6 Sept 2018
DOIs	https://doi.org/10.1134/S1063783418090275
Publication status	Published - Sept 2018

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1 Article

Triple junctions network as the key pattern for characterisation of grain structure evolution in metals
Zhu, S., Borodin, E. & Jivkov, A., 1 Jan 2021, In: Materials & Design. 198, 6 p., 109352.
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abstract = "The evolution of a structural–temporal integral criterion of yielding is reported for the description of the dynamic deformation of metals. The values of characteristic relaxation times, considered as the constants of the material, are shown to be suitable for the description of dynamic effects upon the nanomaterial deformation in a wide range of loading rates. Three various ways of the determination of characteristic relaxation time of nanomaterials are discussed. The behavior of the ultimate stress in the range of pulse duration from one and two points of change in the dominant mechanism of rate sensitivity is interpreted in the context of integral criterion of yielding.",

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AB - The evolution of a structural–temporal integral criterion of yielding is reported for the description of the dynamic deformation of metals. The values of characteristic relaxation times, considered as the constants of the material, are shown to be suitable for the description of dynamic effects upon the nanomaterial deformation in a wide range of loading rates. Three various ways of the determination of characteristic relaxation time of nanomaterials are discussed. The behavior of the ultimate stress in the range of pulse duration from one and two points of change in the dominant mechanism of rate sensitivity is interpreted in the context of integral criterion of yielding.

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Structural–Temporal Peculiarities of Dynamic Deformation of Nanostructured and Nanoscaled Metals

Abstract

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Research output

Triple junctions network as the key pattern for characterisation of grain structure evolution in metals

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