Austenite stainless steels with gradient nanostructure exhibit exceptional combination of
high yield strength and high ductility. In order to describe their structure-property relation, a …

A theoretical model is suggested which describes the combined effects of grain boundary
(GB) sliding and diffusion on strain hardening and ductility of nanocrystalline materials …

Gradient structure (GS) possesses a typical trans-scale grain hierarchy with varying internal
plastic stability, and the mutual plastic accommodation plays a crucial role in its superior …

Gradient nano-grained (GNG) metals are a unique class of metallic materials by
manipulating the gradient size distribution, but the optimal grain size distribution producing …

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 …

Compared to conventional metals with homogeneous microstructures, heterogeneously
structured materials with spatially gradient nanostructures exhibit superior mechanical …

Gradient nanostructured (GNS) metals exhibit high overall extra strengths relative to their
non-gradient counterparts. However, the spatial distribution of local extra strengths …

Grain boundaries (GBs) play a crucial role in the mechanical behaviors of nanocrystalline
materials. The dynamics of GBs depend on a variety of intrinsic and extrinsic factors …

Gradient plasticity provides an effective theoretical framework to interpret heterogeneous
and irreversible deformation processes on micron and submicron scales. By incorporating …

Classical fracture mechanics as well as modern strain gradient plasticity theories assert the
existence of stress concentration (or strain gradient) ahead of a notch tip, albeit somewhat …