A molecular dynamics study on the orientation, size, and dislocation confinement effects on the plastic deformation of Al nanopillars
S Xu, YF Guo, AHW Ngan - International Journal of Plasticity, 2013 - Elsevier
Molecular dynamics are employed to simulate the compression process of Al nanopillars
with different orientations. The simulations show that the initial dislocations always nucleate …
with different orientations. The simulations show that the initial dislocations always nucleate …
Effects of the initial dislocation density on size effects in single-crystal magnesium
CM Byer, KT Ramesh - Acta materialia, 2013 - Elsevier
Single-crystal magnesium micropillars, ranging in diameter from approximately 600nm to
10μm, are fabricated using focused ion beam machining and are loaded in uniaxial …
10μm, are fabricated using focused ion beam machining and are loaded in uniaxial …
[HTML][HTML] Rate limiting deformation mechanisms of bcc metals in confined volumes
D Kiener, R Fritz, M Alfreider, A Leitner, R Pippan… - Acta Materialia, 2019 - Elsevier
The influence of microstructure on the strength scaling behaviour of ultrafine-grained bcc
metals is investigated by scale-bridging experiments spanning four orders of length on …
metals is investigated by scale-bridging experiments spanning four orders of length on …
Stochastic behaviors in plastic deformation of face-centered cubic micropillars governed by surface nucleation and truncated source operation
Three dimensional dislocation dynamics (DD) simulations are performed to investigate the
governing mechanism of size dependent plastic deformation in submicron face-centered …
governing mechanism of size dependent plastic deformation in submicron face-centered …
Extraction of plasticity parameters of GaN with high temperature, in situ micro-compression
JM Wheeler, C Niederberger, C Tessarek… - International Journal of …, 2013 - Elsevier
Micro-pillar compression has been utilised in a novel elevated temperature technique, in situ
in the SEM to characterise the plasticity of gallium nitride (GaN){0001}-oriented euhedral …
in the SEM to characterise the plasticity of gallium nitride (GaN){0001}-oriented euhedral …
Higher compressive strengths and the Bauschinger effect in conformally passivated copper nanopillars
Our current understanding of size-dependent strength in nano-and microscale crystals is
centered around the idea that the overall strength is determined by the stress required to …
centered around the idea that the overall strength is determined by the stress required to …
A size-dependent tensorial plasticity model for FCC single crystal with irradiation
In this paper, effects of irradiation damage and crystal size on the mechanical behaviors of
FCC single crystals are explored. By treating the spatial dependent interaction between …
FCC single crystals are explored. By treating the spatial dependent interaction between …
Dislocation climb in two-dimensional discrete dislocation dynamics
In this paper, dislocation climb is incorporated in a two-dimensional discrete dislocation
dynamics model. Calculations are carried out for polycrystalline thin films, passivated on one …
dynamics model. Calculations are carried out for polycrystalline thin films, passivated on one …
Plasticity in irradiated FeCrAl nanopillars investigated using discrete dislocation dynamics
In this paper, we investigate plasticity in irradiated FeCrAl nanopillars using discrete
dislocation dynamics simulations (DDD), with comparisons to transmission electron …
dislocation dynamics simulations (DDD), with comparisons to transmission electron …
Universality class of nanocrystal plasticity: localization and self-organization in discrete dislocation dynamics
The universality class of the avalanche behavior in plastically deforming crystalline and
amorphous systems has been commonly discussed, despite the fact that the microscopic …
amorphous systems has been commonly discussed, despite the fact that the microscopic …