Twin boundaries (TBs) are ubiquitous interfaces with specific structure in metallic materials.
They possess special interactions with dislocations and the fatigue cracking behaviors are …

Nanostructured metallic materials having nanocrystalline and ultrafine-grained structures
show exceptional mechanical properties, eg superior strength, that are very attractive for …

Grain boundaries (GBs), with their diversity in both structure and structural transitions, play
an essential role in tailoring the properties of polycrystalline materials,,,–. As a unique GB …

INTRODUCTION Gradient structures ubiquitously exist in natural materials such as bone,
shells, and trees. Microstructural gradients are increasingly being introduced into a wide …

Abstract Bulk nanostructured (ns)/ultrafine-grained (UFG) metallic materials possess very
high strength, making them attractive for high strength, lightweight and energy efficient …

Micro/nano electromechanical systems and nanodevices often suffer from degradation
under electrical pulse. However, the origin of pulse-induced degradation remains an open …

Bulk nanostructured (NS) materials processed by severe plastic deformation (SPD) have
received considerable attention for several decades. The physical origin of this processing …

In this work, we demonstrate a novel machining solution for controlling microstructures with
special grain boundaries and nanotwins in composites during laser powder bed fusion …

Ceramic materials with high strength and chemical inertness are widely used as
engineering materials. However, the brittle nature limits their applications as fracture occurs …

The strength of nanocrystalline and nanotwinned metals stops increasing or even starts
decreasing when their grain size or twin thickness is below a critical size—a phenomenon …