Impact response of a tungsten heavy alloy over 23–1100 °C temperature range

Zaretsky, E.; Frage, N.; Ratzker, Barak; Kalabukhov, Sergey; Mayseless, M.

doi:10.1063/5.0042939

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…ε , for FCC materials (54) where C 0 , C 1 , C 2 , C 3 , C 4 , C 5 , and n are fitting parameters. It can be seen from Equations ( 53) and ( 54) that the strain hardening index is affected by strain rate and temperature for FCC materials, while for BCC materials, the strain hardening index is constant.…”

Section: Zerilli-armstrong Model (Za Model)mentioning

confidence: 99%

“…However, the SG model or SL model can comprehensively reflect the dependence of the shear modulus and yield strength of the material on pressure and temperature. However, the physical mechanism of material deformation under strong impact conditions is very complex, so the applicability of the model has always been the focus of scholars' research and exploration [54,55]. In recent years, in order to better describe the dependence of shear modulus and yield strength on temperature and pressure, the revision of SG model based on physical deformation characteristics of materials has become one of the focus of scholars' attention and research [56,57].…”

Section: Steinberg-guinan (Sg) Model and Steinberg-lund (Sl) Modelmentioning

confidence: 99%

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Plastic Deformation Behavior of Metal Materials: A Review of Constitutive Models

Jia

Hao

Luo

et al. 2022

Metals

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The deformation behavior of metal materials in plastic forming is intimately related to deformation conditions, which are greatly affected by deformation rate, forming temperature, and plastic variables. Macroscopic mechanical properties research is an important basis and technical means to analyze the process parameters and deformation process of metal plastic forming. Therefore, to reveal the influence mechanism of macroscopic mechanical properties of metal materials, and establish material constitutive models under different deformation conditions, it is of great significance to choose reasonable forming parameters and prevent forming defects. There are substantial variances in the macroscopic mechanical characteristics of different materials in the deformation process. In order to accurately predict its deformation behavior, the phenomenological constitutive model, the microscopic constitutive model reflecting the microscopic deformation mechanism, and the artificial neural network constitutive model based on the neural network were constructed respectively on the basis of macroscopic mechanical tests and microscopic microstructure tests. On the basis of the existing research results, the advantages and disadvantages of phenomenological constitutive model, microscopic constitutive model, and neural network constitutive model are compared and analyzed, respectively. The research results of this paper will provide support for the selection of constitutive models for reasonably predicting the deformation behavior of metal materials.

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Section: Zerilli-armstrong Model (Za Model)mentioning

confidence: 99%

Section: Steinberg-guinan (Sg) Model and Steinberg-lund (Sl) Modelmentioning

confidence: 99%

Plastic Deformation Behavior of Metal Materials: A Review of Constitutive Models

Jia

Hao

Luo

et al. 2022

Metals

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Crystal plasticity study of stress overshoot during high-strain rate deformation

Zeng²,

Xiong³

et al. 2022

Meccanica

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Role of solid solution strengthening on shock wave compression of [111] copper crystals

Bryukhanov,

Chaikovskii

2024

Journal of Applied Physics

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The paper investigates the role of solid solution strengthening on the shock wave structure and Hugoniot elastic limit (HEL) in [111] copper crystals by molecular dynamics. Cu–Ni, Cu–Zn, Cu–Ag, and Cu–Al solid solutions are chosen to cover the range of atomic size misfit parameters for the solute atoms. The results show that in crystals with dislocations, the HEL decays slower with an increase in the misfit parameter of the solute, resulting in higher HEL values at a certain shock propagation distance. The Cu–Al solid solutions with the largest misfit parameter exhibit the largest deceleration of HEL decay. When the concentration of Al atoms increases to 20 at. %, the HEL almost does not change with shock propagation distance and a plateau shape of the elastic precursor is observed, as in the case of perfect crystals. In solid solutions without dislocations, the elastic precursor forms at lower velocities compared with perfect copper crystals, except for the Cu–20 at. % Ni solid solution. The HEL values increase with increasing misfit parameters and may take values lower than that for pure copper. These results show that the formation of the elastic precursor is facilitated by the presence of solid solution atoms, but the HEL magnitude and decay exponent are related to dislocation mobility in [111] copper crystals.

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Impact response of a tungsten heavy alloy over 23–1100 °C temperature range

Cited by 3 publications

References 33 publications

Plastic Deformation Behavior of Metal Materials: A Review of Constitutive Models

Plastic Deformation Behavior of Metal Materials: A Review of Constitutive Models

Crystal plasticity study of stress overshoot during high-strain rate deformation

Role of solid solution strengthening on shock wave compression of [111] copper crystals

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