An equiatomic CoCrFeMnNi high-entropy alloy (HEA), produced by arc melting and drop
casting, was subjected to severe plastic deformation (SPD) using high-pressure torsion. This …

One hopeful path to realize good comprehensive mechanical properties in metallic materials
is to accomplish homogeneous nanocrystalline (NC) or ultrafine grained (UFG) structure …

Severely deformed materials intrinsically contain a large density of crystalline defects like
dislocations or boundaries. The interactions between solute atoms or impurities with these …

Ultrafine-grained and heterostructured materials are currently of high interest due to their
superior mechanical and functional properties. Severe plastic deformation (SPD) is one of …

The development of high-strength metals has driven the endeavor of pushing the limit of
grain size (d) reduction according to the Hall-Petch law. But the continuous grain refinement …

Bulk nanoSPD materials are materials with nanostructural features, such as nanograins,
nanoclusters, or nanotwins, produced by severe plastic deformation (SPD) techniques. Such …

An equiatomic, single-phase TiZrNbHfTa high-entropy alloy was subjected to high-pressure
torsion, leading to a grain size below 100 nm. Introducing a nanocrystalline microstructure to …

An ultrastrong nanocrystalline stainless steel with a yield strength of~ 2.0 GPa was reported
and the Hall-Petch equation of the stainless steel in the nanoscale was determined. The …

Pt and its alloys have important applications in the field of catalysis or in the jewellery
industry. Especially in the latter case sufficient strength is necessary to ensure wear …

The equiatomic face-centered cubic high-entropy alloy CrMnFeCoNi was severely deformed
at room and liquid nitrogen temperature by high-pressure torsion up to shear strains of about …