Prior to macroscopic yielding, most materials undergo a regime of plastic activity that cannot
be resolved in conventional bulk deformation experiments. In this pre-yield, or micro-plastic …

Size-affected dislocation-mediated plasticity is important in a wide range of materials and
technologies. Here we develop a generalized size-dependent dislocation-based model that …

This paper reviews recent studies, that not only includes both experiments and modeling
components, but celebrates a close coupling between these techniques, in order to provide …

Three newly identified cross-slip mechanisms from atomistic simulations of fcc crystals,
namely surface, bulk and intersection cross-slip types, were hierarchically informed into …

INTRODUCTION Metals are the material of choice for many structural applications because
they provide the best compromise between strength and ductility. For applications in which …

The strength of metals increases with decreasing sample size, a trend known as the size
effect. In particular, focused ion beam-milled body-centered cubic (BCC) micropillars exhibit …

Abstract 3D-DD simulations are performed with cubic grains ranging from 1 to 10 µm to
investigate the physical mechanisms at the origin of the Hall–Petch law. In particular, the …

This paper describes a study of local deformation mechanisms in two-phase Ti alloy, Ti–6Al–
2Sn–4Zr–2Mo, by performing in-situ micropillar compression tests. A colony microstructure …

Although presenting attractive features in dealing with small-scale size effects, strain
gradient plasticity (SGP) theories can lead to uncommon phenomena for some boundary …

Homogeneous interfaces like grain boundaries (GBs) play an important role in crystalline
plasticity as they often serve as obstacles for dislocation motion, as well as dislocation …