The effect of local chemical ordering on Frank-Read source activation in a refractory multi-principal element alloy
In this work, we investigate the operation of Frank-Read (FR) sources in a refractory multi-
principal element alloy (MPEA). Simulations of discrete dislocation motion in MPEAs is …
principal element alloy (MPEA). Simulations of discrete dislocation motion in MPEAs is …
Generalized stacking fault energies and Peierls stresses in refractory body-centered cubic metals from machine learning-based interatomic potentials
The generalized stacking fault energies (GSFE) and Peierls stresses are strongly related to
the mechanical properties of refractory metals. In this work, the GSFE curves and Peierls …
the mechanical properties of refractory metals. In this work, the GSFE curves and Peierls …
Temperature dependent deformation localization in irradiated tungsten
Tungsten is considered as the plasma-facing material in the nuclear fusion device, which
has to withstand coupled irradiation, mechanical and thermal conditions. To guarantee the …
has to withstand coupled irradiation, mechanical and thermal conditions. To guarantee the …
A coupled crystal-plasticity and phase-field model for understanding fracture behaviors of single crystal tungsten
The brittle-ductile transition (BDT) of tungsten depends heavily on temperature-dependent
dislocation mobility. To well understand the underlying mechanism of tungsten fracture …
dislocation mobility. To well understand the underlying mechanism of tungsten fracture …
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 …
interstitial atom (SIA) type dislocation loops (DLs) is studied by atomistic simulations in BCC …
Atomic structure, stability, and dissociation of dislocations in cadmium telluride
Dislocation plays a crucial role in many material properties of semiconductors, ranging from
plastic deformation to electronic transport. But the dislocation structures and reactions …
plastic deformation to electronic transport. But the dislocation structures and reactions …
Dislocation pileups in small grains
R Schouwenaars, LAI Kestens - International Journal of Plasticity, 2023 - Elsevier
While the grain size effect (GSE) is universally observed in polycrystalline metals and alloys,
extended dislocation pileups (DPUs) at grain boundaries (GBs) are rarely observed …
extended dislocation pileups (DPUs) at grain boundaries (GBs) are rarely observed …
Plasticity induced anelasticity: The atomistic origin
Plastic deformation is associated with developments in both dislocation density and residual
strain. This study used multi-scale diffraction-based, X-ray as well as electron diffraction …
strain. This study used multi-scale diffraction-based, X-ray as well as electron diffraction …
Phase-field dislocation modeling of cross-slip
The phase-field dislocation dynamics (PFDD) model is extended to simulate cross-slip in
body-centered cubic materials. The model makes use of a non-orthogonal, body-centered …
body-centered cubic materials. The model makes use of a non-orthogonal, body-centered …
[HTML][HTML] Line-length-dependent dislocation glide in refractory multi-principal element alloys
Plastic deformation of refractory multi-principal element alloys (RMPEAs) is known to differ
greatly from those of refractory pure metals. The fundamental cause is the different …
greatly from those of refractory pure metals. The fundamental cause is the different …