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 …

The strength–ductility trade-off has been a long-standing dilemma for polycrystalline metals.
Though many strategies such as introduction of gradient and twinned microstructure have …

Gradient nano-grained Cu subjected to tensile tests yields at a stress almost twice of that of
the conventional coarse-grained Cu at or below the room temperature. Beyond the yield …

Recent experimental studies indicate that the yield strength of nanocrystalline (NC) metals
under high hydrostatic pressure exhibits monotonous strengthening as the grain size …

The geometrically non-linear scale dependent response of polycrystal FCC metals is
modelled by an enhanced crystal plasticity framework based on the evolution of several …

Low stacking-fault energy (SFE) nanocrystalline alloys with pre-existing nanotwins (PNTs)
and heterogeneous grain structure (HGS) exhibit exceptional strength-ductility …

A gradient-enhanced crystal plasticity model is presented that explicitly accounts for the
evolution of the densities of geometrically necessary dislocations (GNDs) on individual slip …

Small scale strain gradient plasticity is coupled with a model of grain boundaries that take
into account the energetic state of a plastically strained boundary and the slip and …

In this paper, it is shown that the occurrence of dislocation pileups across grain boundaries,
as well as subsequent emission to the adjacent grains, is captured theoretically by gradient …

Classical molecular dynamics (MD) simulation method is employed to study the uniaxial
tensile deformation of nanocrystalline magnesium (Mg) of varying grain size levels. The …