Unusual plasticity and strength of metals at ultra-short load durations

GI Kanel, EB Zaretsky, SV Razorenov… - Physics …, 2017 - iopscience.iop.org
This paper briefly reviews recent experimental results on the temperature-rate dependences
of flow and fracture stresses in metals under high strain rate conditions for pulsed shock …

Shock-induced deformation and spallation in CoCrFeMnNi high-entropy alloys at high strain-rates

W Li, S Chen, Z Aitken, YW Zhang - International Journal of Plasticity, 2023 - Elsevier
Shock-induced deformation and fracture in single-crystalline and nanocrystalline
CoCrFeMnNi high-entropy alloys (HEAs) under different shock intensities are investigated …

Plastic deformation behavior of titanium alloy by warm laser shock peening: Microstructure evolution and mechanical properties

X Pan, W He, X Huang, X Wang, X Shi, W Jia… - Surface and Coatings …, 2021 - Elsevier
The plastic deformation behavior of Ti6Al4V titanium alloy subjected to 300° C-warm laser
shock peening (WLSP) was inferred from its microstructure evolution and mechanical …

Invariance of the dissipative action at ultrahigh strain rates above the strong shock threshold

JC Crowhurst, MR Armstrong, KB Knight, JM Zaug… - Physical review …, 2011 - APS
We have directly resolved shock structures in pure aluminum in the first few hundred
picoseconds subsequent to a dynamic load at peak stresses up to 43 GPa and strain rates in …

Dislocation nucleation in Al single crystal at shear parallel to (111) plane: Molecular dynamics simulations and nucleation theory with artificial neural networks

AE Mayer, VS Krasnikov, VV Pogorelko - International Journal of Plasticity, 2021 - Elsevier
We develop the theory of homogeneous nucleation of dislocations, which predicts plasticity
incipience in FCC single crystal using material properties at elastic stage. In contrast to …

High strain-rate plastic flow in Al and Fe

RF Smith, JH Eggert, RE Rudd, DC Swift… - Journal of applied …, 2011 - pubs.aip.org
Thin Fe and Al foils were ramp-compressed over several to tens of ns timescales to study the
time-dependence associated with the onset of plastic flow. Peak stress states of 15–200 …

Laser pulses into bullets: tabletop shock experiments

DD Dlott - Physical Chemistry Chemical Physics, 2022 - pubs.rsc.org
This article discusses tabletop high-throughput laser experiments on shock waves in solids
and liquids, where the more usual laser pump pulse is replaced by a 0.5 mm diameter laser …

Effect of temperature, strain, and strain rate on the flow stress of aluminum under shock-wave compression

EB Zaretsky, GI Kanel - Journal of Applied Physics, 2012 - pubs.aip.org
The evolution of elastic-plastic shock waves with the propagation distance has been studied
in 99.99% purity aluminum and in annealed 6061 aluminum alloy. The free surface velocity …

Modeling of plasticity and fracture of metals at shock loading

AE Mayer, KV Khishchenko, PR Levashov… - Journal of Applied …, 2013 - pubs.aip.org
In this paper, we present a model of dislocation plasticity and fracture of metals, which in
combination with the wide-range equation of state and the continuum mechanics equations …

Dynamics and kinetics of dislocations in Al and Al–Cu alloy under dynamic loading

AV Yanilkin, VS Krasnikov, AY Kuksin… - International Journal of …, 2014 - Elsevier
The paper is focused on investigation of the mechanisms and kinetics of plastic deformation
of alloys under high-rate loading (at the strain rates> 10 5 s− 1). To study alloy behavior …