Heterostructured (HS) materials are a new class of materials that are composed of
heterogeneous zones with dramatically different (> 100%) mechanical or physical …

Nanostructured materials contain an extremely high density of interfaces. The properties of
these materials when exposed to extreme conditions of radiation dose, stress, deformation …

A material strength depends on its microstructure, which in turn, is controlled by an
engineering process. Strengthening mechanisms like work hardening, precipitate, and grain …

Nanocrystalline (nc) materials can be defined as solids with grain sizes in the range of 1–
100 nm. Contrary to coarse-grained metals, which become more difficult to twin with …

The mechanical properties of nanocrystalline materials are reviewed, with emphasis on their
constitutive response and on the fundamental physical mechanisms. In a brief introduction …

Nanocrystalline metals and alloys, with average and range of grain sizes typically smaller
than 100 nm, have been the subject of considerable research in recent years. Such interest …

Classical Hall–Petch relation for large grained polycrystals is usually derived using the
model of dislocation pile-up first investigated mathematically by Nabarro and coworkers. In …

Molecular-dynamics simulations have recently been used to elucidate the transition with
decreasing grain size from a dislocation-based to a grain-boundary-based deformation …

The mechanical behaviour of nanocrystalline materials (that is, polycrystals with a grain size
of less than 100 nm) remains controversial. Although it is commonly accepted that the …

In recent years, near-nano (submicron) and nanostructured materials have attracted
increasingly more attention from the materials community. Nanocrystalline materials are …