Grain-size dependent mechanical behavior of nanocrystalline metals

EN Hahn, MA Meyers - Materials Science and Engineering: A, 2015 - Elsevier
Grain size has a profound effect on the mechanical response of metals. Molecular dynamics
continues to expand its range from a handful of atoms to grain sizes up to 50 nm, albeit …

Molecular dynamics simulation of the shock response of materials: A tutorial

P Wen, G Tao, DE Spearot, SR Phillpot - Journal of Applied Physics, 2022 - pubs.aip.org
The aim of this Tutorial is to help new researchers understand how to perform molecular
dynamics (MD) simulations of the shock response of materials and to provide a brief …

Deformation and failure of the CrCoNi medium-entropy alloy subjected to extreme shock loading

S Zhao, S Yin, X Liang, F Cao, Q Yu, R Zhang, L Dai… - Science …, 2023 - science.org
The extraordinary work hardening ability and fracture toughness of the face-centered cubic
(fcc) high-entropy alloys render them ideal candidates for many structural applications. Here …

Effect of crystallographic orientations on shock-induced plasticity for CoCrFeMnNi high-entropy alloy

B Liu, Z Jian, L Guo, X Li, K Wang, H Deng… - International Journal of …, 2022 - Elsevier
Using nonequilibrium molecular dynamics simulations, we studied the crystallographic-
orientation-dependence shock-induced plasticity for the face-centered cubic (FCC) …

Towards the ultimate strength of iron: spalling through laser shock

G Righi, CJ Ruestes, CV Stan, SJ Ali, RE Rudd… - Acta Materialia, 2021 - Elsevier
The ultimate strength of materials is reached at strain rates approaching the Debye
frequency, when the deformation time at the atomic scale approaches the time for atoms to …

Quasiplastic deformation in shocked nanocrystalline boron carbide: Grain boundary sliding and local amorphization

J Li, Q An - Journal of the European Ceramic Society, 2023 - Elsevier
Materials respond to shock in many ways such as plastic flow in metals and amorphization
in ceramics. It is very challenging to characterize the deformation mechanisms of ceramics …

Dynamic characterization of shock response in crystalline-metallic glass nanolaminates

KV Reddy, C Deng, S Pal - Acta Materialia, 2019 - Elsevier
The dynamic response of crystalline Cu-amorphous Cu 63 Zr 37 nanolaminates under
shock loading has been investigated in the present study by atomistic simulations to provide …

Atomistic studies of shock-induced plasticity and phase transition in iron-based single crystal with edge dislocation

Y Huang, Y Xiong, P Li, X Li, S Xiao, H Deng… - International Journal of …, 2019 - Elsevier
In engineering applications, various types of defects inevitably exist in materials which
would critically affect their properties. By introducing an edge dislocation into the model of …

Coupling between plasticity and phase transition of polycrystalline iron under shock compressions

K Wang, W Zhu, S Xiao, K Chen, H Deng… - International Journal of …, 2015 - Elsevier
Coupling between plasticity and martensitic transformation is the origin of many properties of
the material exhibiting martensitic phase transition, such as transition induced plasticity …

Coupling between plasticity and phase transition in shock-and ramp-compressed single-crystal iron

N Amadou, T De Resseguier, A Dragon, E Brambrink - Physical Review B, 2018 - APS
Molecular dynamics simulations have been used to investigate the coupling process
between plasticity and structural phase transformation in single-crystal iron under both …