Twin boundaries (TBs) are ubiquitous interfaces with specific structure in metallic materials.
They possess special interactions with dislocations and the fatigue cracking behaviors are …

This article focuses on the mechanisms and consequences of plastic strain localizations
exhibited in tensile stress–strain behaviors, fracture and fatigue. A broad overview is first …

Recent studies have shown that nanotwinned copper (NT Cu) exhibits a combination of high
strength and moderate ductility. However, most engineering and structural applications …

Austenite stainless steels with gradient nanostructure exhibit exceptional combination of
high yield strength and high ductility. In order to describe their structure-property relation, a …

The strengthening effect of twins in nanocrystalline metals has been reported both in
experiment and simulation. While twins are mostly considered as effective barriers to …

The internal twin-boundaries in lamellar γ-TiAl alloys, namely true-twin (TT), rotational
boundary (RB), and pseudo-twin (PT), are known to be effective in strengthening the TiAl …

To study the assistance of growth twin in nano-layered polycrystalline metallic multilayers to
their strength, a series of uniaxial tensile modeling of nano-twinned Cu//Ag and Cu//Ni …

Strengthening of metals by incorporating nano-scale coherent twin boundaries is one of the
important breakthroughs of recent years in overcoming the strength-ductility trade-off. To this …

The effect of grain size on the elastic mechanical properties of nanocrystalline pure metal Al
is quantified by molecular dynamics simulation method. In this work, the largest …

Nanotwinned Cu exhibits an unusual combination of ultra-high strength and high tensile
ductility. However, its fracture behavior and associated microscopic mechanisms remain …