Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and
nanostructured materials with large densities of lattice defects. This field, also known as …

The grain size, and therefore the grain boundary density, is known to play a major role in the
flow stress of metallic materials. A linear relationship to the inverse of the square root of the …

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 …

The origin of dense dislocations in many additively manufactured metals remains a mystery.
We here employed pure Cu as a prototype and fabricated the very challenging high-purity (> …

Dense networks of deformation twins endow metals and alloys with unprecedented
mechanical properties. However, the formation mechanism of these hierarchical twin …

In this study, we report the effect of elemental combinations on the friction stress and Hall-
Petch relationship in medium entropy alloys (MEAs) and high entropy alloys (HEAs) which …

The development of alloys with excellent strength-ductility synergy is a long-lasting research
theme for material scientists, which also holds true for the newly emerged complex …

Ultrafine-grained materials display almost no strain hardening, an enhanced strain rate
sensitivity and grain boundary offsets during plastic deformation. It is expected that …

Here we report on the tensile deformation behavior of a face-centered cubic (FCC)-
structured Fe 45 Co 25 Ni 10 V 20 high-entropy alloy at cryogenic temperature (77 K). The …

Similar to the conventional alloys, attaining excellent combination of high strength and
ductility is still challenging in the high-entropy alloys (HEAs). In this work, a fully …