Deformation twins (DTs) and stacking faults (SFs) are rarely found in Cu-20Ni-20Mn alloy,
which limits further strengthening of alloy. Here, we report ultra-strong Cu-20Ni-20Mn alloy …

Twinning and dislocation slip are two major and competing modes of plastic deformation in
metals and alloys. In addition to controlling the dislocation substructure in coarse grained …

Although deformation twinning has been demonstrated to improve the strain hardening and
ductility of metals and alloys with low stacking fault energies (SFEs), the optimum grain size …

Manipulating coherent twin boundaries (CTBs) opens an avenue to design strong
nanostructured materials. However, below a critical TB spacing, these inherently defective …

Flaw-free bulk Cu specimens with a high density of nano-scale mechanical twins were
produced by means of dynamic plastic deformation at liquid nitrogen temperature. The nano …

Mechanical properties of nanostructured (NS) materials are significantly affected by both
grain size and twin density, and the twin density has a close relationship with the grain size …

Nanocrystalline and nanotwinned metals exhibit ultrahigh strength but suffer from low
ductility due to the absence of the strain hardening effect. Here, we report sustained strong …

Preexisting twin boundaries (TBs) and deformation twinning have been reported to
significantly improve the strength and ductility of nanocrystalline and ultrafine-grained face …

We investigate the grain size dependence of tensile behaviors of nanotwinned Cu with fixed
twin thickness. With an increased grain size, ductility and work hardening of nanotwinned …

A structure with extensive randomly oriented nanoscale deformation twins and twin
intersections was introduced in a bulk Cu–Al alloy by multi-directional forging at room …