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 …

Over the past decades, enormous effort has been dedicated to enhancing the hardness of
refractory ceramic materials. Typically, however, an increase in hardness is accompanied by …

In this study, the effects of Ultrasonic Nano-crystal Surface Modification (UNSM) on residual
stresses, microstructure changes and mechanical properties of austenitic stainless steel 304 …

An overview is given of the deformation mechanisms in nanotwinned copper, as studied by
recent molecular dynamics, dislocation mechanics and crystal plasticity modeling. We …

Recent studies have shown that nanotwinned copper (NT Cu) exhibits a combination of high
strength and moderate ductility. However, most engineering and structural applications …

Ultrasonic surface rolling technology is a new mechanical surface treatment technology that
can improve the surface integrity, increase the amplitude and depth of the residual …

The internal twin-boundaries in lamellar γ-TiAl alloys, namely true-twin (TT), rotational
boundary (RB), and pseudo-twin (PT), are known to be effective in strengthening the TiAl …

We investigate the fatigue behavior of nanotwinned Cu using a combination of molecular
statics and molecular dynamics simulations. The presence of nanoscale twins is found to …

A bulk nanotwinned austenitic stainless steel containing a large volume fraction of
deformation twins was produced by dynamic plastic deformation. The tensile tests and J …

Coherent twin boundaries (CTBs) in nano-twinned materials could improve crack resistance.
However, the role of the CTBs during crack penetration has never been explored at atomic …