The mechanics and physics of high-speed dislocations: a critical review

B Gurrutxaga–Lerma, J Verschueren… - International …, 2021 - Taylor & Francis
High speed dislocations have long been identified as the dominant feature governing the
plastic response of crystalline materials subjected to high strain rates, controlling …

Anomalous dislocation core structure in shock compressed bcc high-entropy alloys

L Zhao, H Zong, X Ding, T Lookman - Acta Materialia, 2021 - Elsevier
Recent studies of complex concentrated alloys suggest unusual dislocation core structure
and motion, thanks to a collective concentration/structural inhomogeneity. Less is known …

How to determine limiting velocities of dislocations in anisotropic crystals

DN Blaschke - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
In the continuum limit, the theory of dislocations in crystals predicts a divergence in the
elastic energy of the host material at a crystal geometry dependent limiting (or critical) …

Formation of prismatic loops in AlN and GaN under nanoindentation

H Xiang, H Li, T Fu, C Huang, X Peng - Acta Materialia, 2017 - Elsevier
The formation of prismatic loops in metals has been studied extensively, but the
corresponding research related to ceramics can rarely be found in the literature. In this …

Influence of kinetic effect on interaction between edge dislocation and irradiated dislocation loops in BCC Tantalum

Q Bao, Z Li, B Zhu, S Liang, J Zhu, M Huang… - International Journal of …, 2023 - Elsevier
In this paper, the interaction between an edge dislocation and irradiation< 100> sessile self-
interstitial atom (SIA) type dislocation loops (DLs) is studied by atomistic simulations in BCC …

Orientation dependence of shock-induced change of habit plane for the 1/2< 111> dislocation loop and plasticity in tungsten

L Guo, L Wang, N Gao, Y Chen, B Liu, W Hu… - International Journal of …, 2022 - Elsevier
Tungsten (W) is a promising candidate material for future fusion reactors. The shock waves
generated under high-energy neutron radiation can lead to the formation of prismatic …

Abnormal interactions between high-speed edge dislocation and microvoid in BCC metals

Q Bao, MS Huang, Y Zhu, L Zhao, Z Li - International Journal of Plasticity, 2022 - Elsevier
The interaction between a high speed edge dislocation and a microvoid has been
investigated by molecular dynamics (MD) simulations in BCC crystals of Ta, Fe, V and W in …

Dislocation drag from phonon wind in an isotropic crystal at large velocities

DN Blaschke, E Mottola, DL Preston - Philosophical Magazine, 2020 - Taylor & Francis
The anharmonic interaction and scattering of phonons by a moving dislocation, the photon
wind, imparts a drag force v B (v, T, ρ) on the dislocation. In early studies, the drag coefficient …

Dislocation kinematics: a molecular dynamics study in Cu

E Oren, E Yahel, G Makov - Modelling and Simulation in Materials …, 2016 - iopscience.iop.org
The kinematics and kinetics of edge and screw dislocations in FCC materials were studied
by molecular dynamics, with Cu as a case study. It was found that with increasing stress …

A discrete–continuous model of three-dimensional dislocation elastodynamics

Y Cui, T Wang, S Luo, Z Li, Z Li - International Journal of Plasticity, 2022 - Elsevier
Unraveling the deformation mechanism of materials under extremely high strain rate is
critical from both scientific and engineering viewpoints. The elastodynamic effect of 3D high …