This paper reviews the recent research and development of high-entropy alloys (HEAs).
HEAs are loosely defined as solid solution alloys that contain more than five principal …

Abstract The Portevin–Le Chatelier (PLC) effect manifests itself as an unstable plastic flow
during tensile tests of some dilute alloys under certain regimes of strain rate and …

In the past twenty years, new experimental approaches, improved models and progress in
simulation techniques have brought new insights into longstanding issues concerning …

From the traditional viewpoint of continuum plasticity, plastic deformation of crystalline solids
is, at least in the absence of so-called plastic instabilities, envisaged as a smooth and quasi …

We show that slowly sheared metallic nanocrystals deform via discrete strain bursts (slips),
whose size distributions follow power laws with stress-dependent cutoffs. We show for the …

A serrated flow, which occurs in a material undergoing mechanical deformation, is a
complex process of great engineering significance. Here statistical, dynamical, and …

There is growing evidence for the complex, intermittent, and heterogeneous character of
plastic flow. Here we report a three-dimensional mapping of dislocation avalanches during …

The purpose of this work was to characterize the spatial distribution of residual deformation
at the mesoscale (a few grains) and at the macroscale (hundreds of grains) in titanium …

Plastic deformation of micron and sub-micron scale specimens is characterized by
intermittent sequences of large strain bursts (dislocation avalanches) which are separated …

Previous acoustic emission (AE) experiments on ice single crystals, as well as numerical
simulations, called for the possible occurrence of self-organized criticality (SOC) in collective …