Grain-size dependent mechanical behavior of nanocrystalline metals
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 …
continues to expand its range from a handful of atoms to grain sizes up to 50 nm, albeit …
A review on atomistic simulation of grain boundary behaviors in face-centered cubic metals
Grain boundaries are the interfaces between differently oriented crystals of the same
material. The underlying structures of grain boundary play a significant role in mechanical …
material. The underlying structures of grain boundary play a significant role in mechanical …
Dislocation interactions at the grain boundary in FCC bicrystals: An atomistically-informed dislocation dynamics study
To understand the underlying mechanisms that control the mechanical properties of
nanostructured metals, an insight into the role of the grain boundary in dislocation-driven …
nanostructured metals, an insight into the role of the grain boundary in dislocation-driven …
Insights on slip transmission at grain boundaries from atomistic simulations
To fully understand the plastic deformation of metallic polycrystalline materials, the physical
mechanisms by which a dislocation interacts with a grain boundary must be identified …
mechanisms by which a dislocation interacts with a grain boundary must be identified …
Effect of temperature, strain, and strain rate on the flow stress of aluminum under shock-wave compression
EB Zaretsky, GI Kanel - Journal of Applied Physics, 2012 - pubs.aip.org
The evolution of elastic-plastic shock waves with the propagation distance has been studied
in 99.99% purity aluminum and in annealed 6061 aluminum alloy. The free surface velocity …
in 99.99% purity aluminum and in annealed 6061 aluminum alloy. The free surface velocity …
Micro-mechanical behavior of lamellar structured Ti6Al4V alloy upon compression via experimental and crystal plasticity study
The micro-mechanical behavior of lamellar structured Ti6Al4V alloy to a small
compressional strain of 4.5% was studied. Strain and stress intends to localize along grain …
compressional strain of 4.5% was studied. Strain and stress intends to localize along grain …
Disclination-dislocation based model for grain boundary stress field evolution due to slip transmission history and influence on subsequent dislocation transmission
This work demonstrates how the structure of a grain boundary (GB) and its evolution due to
slip transmission history influences subsequent dislocation transmission. First, a model for …
slip transmission history influences subsequent dislocation transmission. First, a model for …
Effects of stable and unstable stacking fault energy on dislocation nucleation in nano-crystalline metals
V Borovikov, MI Mendelev, AH King - Modelling and Simulation …, 2016 - iopscience.iop.org
Dislocation nucleation from grain boundaries (GB) can control plastic deformation in nano-
crystalline metals under certain conditions, but little is known about what controls dislocation …
crystalline metals under certain conditions, but little is known about what controls dislocation …
In situ and tomographic analysis of dislocation/grain boundary interactions in α-titanium
In situ straining in the transmission electron microscope and diffraction-contrast electron
tomography have been applied to the investigation of dislocation/grain boundary and …
tomography have been applied to the investigation of dislocation/grain boundary and …
Nonequilibrium statistical thermodynamics of thermally activated dislocation ensembles: part 3—Taylor–Quinney coefficient, size effects and generalized normality
DL McDowell - Journal of Materials Science, 2024 - Springer
The nonequilibrium statistical thermodynamics framework for thermally activated dislocation
ensembles introduced in Parts 1 and 2 is applied to interpret and explain the fraction of …
ensembles introduced in Parts 1 and 2 is applied to interpret and explain the fraction of …