Nanoscale small-volume metallic materials typically exhibit high strengths but often suffer
from a lack of tensile ductility due to undesirable premature failure. Here, we report unusual …

Linear defects in crystalline materials, known as dislocations, are central to the
understanding of plastic deformation and mechanical strength, as well as control of …

Nanowires and nanoparticles are envisioned as important elements of future technology
and devices, owing to their unique mechanical properties. Metallic nanowires and …

We develop the theory of homogeneous nucleation of dislocations, which predicts plasticity
incipience in FCC single crystal using material properties at elastic stage. In contrast to …

Deformation twinning is an essential plastic deformation mechanism that realizes the trade–
off between strength and ductility. Twins nucleate and grow by the coordinated slip of partial …

Based on recent findings in ultrafine grained metals, we proposed a strategy for overcoming
the strength-ductility trade-off in structural metallic materials. Sequential nucleation of …

Dislocation nucleation plays a critical role in the plastic deformation of crystalline materials.
However, it is challenging to predict the active mode and associated rate of dislocation …

Shape-memory alloys capable of a superelastic stress-induced phase transformation and a
high displacement actuation have promise for applications in micro-electromechanical …

Tensile deformation behaviour of body centred cubic (BCC) iron nanowires with initial
orientation of< 1 0 0>/{1 0 0} has been investigated using molecular dynamics (MD) …

Over the past decade, numerous efforts have sought to understand the influence of twin
boundaries on the behavior of polycrystalline materials. Early results suggested that twin …