Frontiers in the simulation of dislocations
Dislocations play a vital role in the mechanical behavior of crystalline materials during
deformation. To capture dislocation phenomena across all relevant scales, a multiscale …
deformation. To capture dislocation phenomena across all relevant scales, a multiscale …
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 …
plastic response of crystalline materials subjected to high strain rates, controlling …
A phenomenological dislocation mobility law for bcc metals
Dislocation motion in body centered cubic (bcc) metals displays a number of specific
features that result in a strong temperature dependence of the flow stress, and in shear …
features that result in a strong temperature dependence of the flow stress, and in shear …
Unraveling the temperature dependence of the yield strength in single-crystal tungsten using atomistically-informed crystal plasticity calculations
We use a physically-based crystal plasticity model to predict the yield strength of body-
centered cubic (bcc) tungsten single crystals subjected to uniaxial loading. Our model …
centered cubic (bcc) tungsten single crystals subjected to uniaxial loading. Our model …
A unified model for ductile-to-brittle transition in body-centered cubic metals
YH Zhang, E Ma, J Sun, WZ Han - Journal of Materials Science & …, 2023 - Elsevier
Ductile-to-brittle transition (DBT) is a well-known phenomenon in body-centered-cubic
(BCC) metals, intermetallics and semiconductor materials. A quantitative prediction of the …
(BCC) metals, intermetallics and semiconductor materials. A quantitative prediction of the …
Local slip resistances in equal-molar MoNbTi multi-principal element alloy
In this work, we calculate the local slip resistances (LSRs) in equal-molar MoNbTi multi-
principal element alloy via molecular static simulations. We consider dislocations of either …
principal element alloy via molecular static simulations. We consider dislocations of either …
[HTML][HTML] An atomistic study on the HELP mechanism of hydrogen embrittlement in pure metal Fe
Abstract The Hydrogen Enhanced Localized Plasticity (HELP) mechanism is one of the most
important theories explaining Hydrogen Embrittlement in metallic materials. While much …
important theories explaining Hydrogen Embrittlement in metallic materials. While much …
Molecular dynamics simulations of dislocation–coherent twin boundary interaction in face-centered cubic metals
C Chen, F Zhang, H Xu, Z Yang… - Journal of Materials …, 2022 - Springer
The interaction mechanisms between dislocations and coherent twin boundary (CTB) were
determined with molecular dynamics simulations. The dislocation slip rate is found to …
determined with molecular dynamics simulations. The dislocation slip rate is found to …
[HTML][HTML] Cross-kinks control screw dislocation strength in equiatomic bcc refractory alloys
Refractory multi-element alloys (RMEA) with body-centered cubic (bcc) structure have been
the object of much research over the last decade due to their high potential as candidate …
the object of much research over the last decade due to their high potential as candidate …
Investigation of slip system activity in iron at room temperature by SEM and AFM in-situ tensile and compression tests of iron single crystals
P Franciosi, LT Le, G Monnet, C Kahloun… - International Journal of …, 2015 - Elsevier
Iron single crystals of wide range of orientations are tested in-situ at room temperature in
tension and compression using a Scanning Electron Microscope (SEM) and in tension using …
tension and compression using a Scanning Electron Microscope (SEM) and in tension using …