Inspired by the gradient structures of biological materials, researchers have explored
compositional and structural gradients for about 40 years as an approach to enhance the …

This article reviews recent basic research on two classes of twins: growth twins and
deformation twins. We focus primarily on studies that aim to understand, via experiments …

The tensile deformation and strain hardening behaviors of an equimolar CoCrFeMnNi high-
entropy alloy (HEA) were investigated and compared with low and medium entropy …

The recent studies on nanotwinned (NT) and hierarchical nanotwinned (HNT) face-centered
cubic (FCC) metals are presented in this review. The HNT structures have been supposed …

Heterogeneous phase interface with particular microstructure generally plays a key role in
the mechanical behavior of nanostructured metals and alloys. Here, we reported a novel …

Nano metallic laminates (NMLs) exhibit exceptional strengths. The viability of NMLs as
structural materials, however, is also conditioned on their ductility and work-hardenability …

There are abundant studies on deformation mechanisms in metallic materials dominated by
grain boundaries and twin boundaries. In comparison, the influence of stacking faults on …

Nanotwinned metals have been the focus of intense research recently, as twin boundaries
may greatly enhance mechanical strength, while maintaining good ductility, electrical …

Nanolaminates are composed of nanoscale-thick alternating layers of different materials and
their properties are dependent on the individual layers, the layer thickness and the …

Twins are domain crystals inside their parent crystals, where they share some of the same
crystal lattice points in a symmetrical manner. The formation and growth of twins result in …