Equal channel angular pressing (ECAP) and high pressure torsion (HPT) are two severe
plastic deformation (SPD) processes that have been used to process ultrafine-grained (UFG) …

Disks of an Al–3% Mg–0.2% Sc alloy were processed by high-pressure torsion (HPT) to
refine the grain size to∼ 0.15 μm. Inspection of the disks after processing revealed a central …

Significant grain refinement is attractive for improving mechanical properties at both ambient
and elevated temperatures and improvements in the properties of light-weight metals has …

Several metals were severely deformed at cryogenic temperature in liquid nitrogen and at
room temperatures in air using high-pressure torsion (HPT). Extra grain refinement to the …

The present study unraveled the defining role of small silicon (Si) addition (5 atomic%) in
dramatically altering the plasticity mechanisms, grain refinement and hardening response of …

The influence of high-pressure torsion (HPT) at various temperatures on microstructure and
mechanical properties of commercially pure (CP) titanium (Grade 4) has been studied using …

Abstract Pure Ti (99.4 pct) is processed by high-pressure torsion (HPT) at applied pressures
in a wide range of 1.2 to 40 giga-pascals (GPa) for equivalent strain up to~ 200. X-ray …

Severe plastic deformation using high-pressure torsion (HPT) is successfully applied at
room temperature to partially stabilized ZrO2. X-ray diffraction and Raman spectroscopy …

Severe plastic deformation (SPD) has emerged as a promising method to produce ultrafine-
grained materials with attractive properties. Today, SPD techniques are rapidly developing …

Disks of high-purity aluminum were processed by high-pressure torsion (HPT) at room
temperature under different conditions of imposed pressure and numbers of turns …