Grain size has a profound effect on the mechanical response of metals. Molecular dynamics
continues to expand its range from a handful of atoms to grain sizes up to 50 nm, albeit …

The synergy of multiple deformation mechanisms responsible for the excellent mechanical
properties attracts an increasing interest in CoCrNi medium entropy alloy (MEA). In this …

Magnesium (Mg) and its alloys usually show relatively low strength and poor ductility at
room temperature due to their anisotropic hexagonal close-packed (HCP) crystal structure …

Grain boundaries are the interfaces between differently oriented crystals of the same
material. The underlying structures of grain boundary play a significant role in mechanical …

Nano-twinned copper exhibits an unusual combination of ultrahigh strength and high
ductility, along with increased strain-rate sensitivity. We develop a mechanistic framework for …

Grain boundaries (GBs) provide a strengthening mechanism in engineering materials by
impeding dislocation motion. In a polycrystalline material, there is a wide distribution of GB …

Research trends in metal plasticity over the past 25years are briefly reviewed. The myriad of
length scales at which phenomena involving microstructure rearrangement during plastic …

The mechanical response of engineering materials evaluated through continuum fracture
mechanics typically assumes that a crack or void initially exists, but it does not provide …

In this work a physically-based model is developed to address slip in polycrystalline metals
and alloys subjected to very high rates of deformation (104–108s− 1). Constitutive relations …

To understand the underlying mechanisms that control the mechanical properties of
nanostructured metals, an insight into the role of the grain boundary in dislocation-driven …