Magnesium is a lightweight structural metal but it exhibits low ductility—connected with
unusual, mechanistically unexplained, dislocation and plasticity phenomena—which makes …

Lightweight magnesium alloys are attractive as structural materials for improving energy
efficiency in applications such as weight reduction of transportation vehicles. One major …

Pure magnesium exhibits poor ductility owing to pyramidal〈 c+ a〉 dislocation
transformations to immobile structures, making this lowest-density structural metal unusable …

It is not easy to fabricate materials that exhibit their theoretical 'ideal'strength. Most methods
of producing stronger materials are based on controlling defects to impede the motion of …

Magnesium, the lightest structural metal, usually exhibits limited ambient plasticity when
compressed along its crystallographic c-axis (the “hard” orientation of magnesium). Here we …

Based on their high specific strength and stiffness, magnesium alloys are attractive for
lightweight applications in aerospace and transportation, where weight saving is crucial for …

Ordinarily, the strength and plasticity properties of a metal are defined by dislocations—line
defects in the crystal lattice whose motion results in material slippage along lattice planes …

Temperature effects on the mobility of< c+ a> dislocations on pyramidal planes are
characterized by molecular dynamics simulations. On the first-order pyramidal planes, near …

The stability of a mixed< c+ a> dislocation on the pyramidal I plane in magnesium is studied
using molecular dynamics simulations. The dislocation is metastable and undergoes a …

We have recently reported that a high strain-rate rolling process is effective for producing
strong and ductile Mg alloy sheets. Here we elucidate the fundamental mechanisms that are …