Nanoindentation became a versatile tool for testing local mechanical properties beyond
hardness and modulus. By adapting standard nanoindentation test methods, simple …

The processing of bulk metals through the application of severe plastic deformation (SPD)
provides the potential for achieving exceptional grain refinement leading to ultrafine‐grained …

Time-dependent plastic deformation behavior of nanocrystalline (nc) and coarse-grained
(cg) CoCrFeMnNi high-entropy alloys (HEAs) was systematically explored through a series …

Abnormal grain growth (AGG) in a Zn-0.8 Ag (wt%) alloy, produced through the application
of high-pressure torsion (HPT), was systematically investigated using scanning electron …

A CoCrFeNiMn high-entropy alloy (HEA), in the form of a face-centered cubic (fcc) solid
solution, was processed by high-pressure torsion (HPT) to produce a nanocrystalline (nc) …

Abstract Development of a reasonable constitutive equation is critical to realize accurate
numerical prediction of ultrasonic vibration-assisted friction stir welding (UVaFSW) of …

The mechanisms of superplasticity occurring in conventional materials, having grains sizes
of the order of a few microns, are now understood reasonably well. However, very recent …

To reveal the underlying mechanism of the synchronous interaction between the ultrasonic
vibration exerted onto the welding tool along welding direction and the thermo-mechanical …

Advanced structural materials are expected to display significantly improved mechanical
properties and this may be achieved, at least in part, by refining the grain size to the …

In this study, a novel approach to modeling the ultrasonic softening effect during metal
plasticity is developed, where the slip systems experience differential softening depending …