Nanomaterials often surprise us with unexpected phenomena. Here, we report a discovery
of the anti-twinning deformation, previously thought impossible, in nanoscale body-centered …

Twinning is a fundamental deformation mode that competes against dislocation slip in
crystalline solids. In metallic nanostructures, plastic deformation requires higher stresses …

Twinning is commonly activated in plastic deformation of low stacking-fault face-centered
cubic (Fcc) metals but rarely found in body-centered cubic (Bcc) metals under room …

Body-centred cubic (BCC) metals are known to have unstable intrinsic stacking faults and
high resistance to deformation twinning, which can strongly influence their twinning …

The competition between dislocation slip and deformation twinning in body-centered cubic
(BCC) nanocrystals can be strongly influenced by the deformation conditions. In this study …

We have performed in situ scanning electron microscopy tensile experiments and molecular
dynamics (MD) simulations on nominally defect-free single-crystalline Au nanowhiskers. The …

A 5-fold twin is usually observed in nanostructured metals after mechanical tests and/or
annealing treatment. However, the formation mechanism of a 5-fold twin has not been fully …

Twinning in body-centered cubic metals is typically attributed to glide of 1/6< 111>
dislocations originated from material defects. Here we report an alternative mechanism for …

Numerous recent studies have focused on the effects of grain size on deformation twinning
in nanocrystalline fcc metals. However, grain size alone cannot explain many observed …

Dislocation–twin interactions critically control the plastic deformation and ultrahigh strength
of nanotwinned metals. Here, we report a strong twin-thickness dependence of dislocation …