Results 21 to 30 of about 33,857 (279)
Microstructure, Texture, and Strength Development during High-Pressure Torsion of CrMnFeCoNi High-Entropy Alloy [PDF]
Crystals, 2020 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 170.
Werner Skrotzki +8 more
doaj +5 more sources
High-Pressure Torsion: A Path to Refractory High-Entropy Alloys from Elemental Powders [PDF]
MetalsFor the first time, the refractory high-entropy alloys with equiatomic compositions, HfNbTaTiZr and HfNbTiZr, were synthesized directly from a blend of elemental powders through ten revolutions of high-pressure torsion (HPT) at room temperature.
Andrey Mazilkin +4 more
doaj +2 more sources
Continuous high-pressure torsion [PDF]
Journal of Materials Science, 2010 Continuous high-pressure torsion (CHPT) was developed as an expeditious process to effect severe plastic deformation. Using the CHPT, sheets of high purity aluminum, copper, and iron were successfully processed by introducing intense shear strain under high pressure.
Kaveh Edalati, Zenji Horita
openaire +1 more source
Metals, 2021 This paper identifies the mechanisms of phase and structural transformations during severe plastic deformation by shearing under pressure (high-pressure torsion) of an Al-Zn-Mg-Fe-Ni-based aluminum alloy depending on different initial states of the ...
Irina Brodova +5 more
doaj +1 more source
Microstructure and Hardness Evolution in Magnesium Processed by HPT [PDF]
Materials Research, 2017 High pressure torsion provides an opportunity to process materials with low formability such as magnesium at room temperature. The present work shows the microstructure evolution in commercially pure magnesium processed using a pressure of 6.0 GPa up to ...
Cláudio L. P. Silva +5 more
doaj +1 more source
Metals, 2020 A study on the role of deformation temperature on a twin-assisted refinement of austenitic structure and phase transformations in high-pressure torsion of high-Mn Hadfield steel single crystals (Fe-13Mn-1.3C, in mass. %) has been carried out.
Galina G. Maier, Elena G. Astafurova
doaj +1 more source
High-Pressure Torsion for Highly-Strained and High-Entropy Photocatalysts
KONA Powder and Particle Journal, 2023 Nowadays, the environmental crisis caused by using fossil fuels and CO2 emissions has become a universal concern in people’s lives. Photocatalysis is a promising clean technology to produce hydrogen fuel, convert harmful components such as CO2, and ...
Saeid Akrami +3 more
doaj +1 more source
High Pressure Hugoniot Measurements in Solids Using Mach Reflections [PDF]
, 2011 Shock compression experiments provide access to high pressures in a laboratory setting. Matter at extreme pressures is often studied by utilizing a well controlled planar impact between two flat plates to generate a one dimensional shock wave.
Brown, Justin Lee
core +1 more source
Influence of processing temperature on microstructure and microhardness of copper subjected to high-pressure torsion [PDF]
, 2010 Cu samples were subjected to high-pressure torsion (HPT) with up to 6 turns at room temperature (RT) and liquid nitrogen temperature (LNT), respectively. The effects of temperature on grain refinement and microhardness variation were investigated.
武晓雷 +4 more
core +1 more source
Microstructure and mechanical properties at different length scales and strain rates of nanocrystalline tantalum produced by high-pressure torsion [PDF]
, 2011 Fully dense, nanocrystalline tantalum (average grain size as small as similar to 40 nm) has been processed for the first time by high-pressure torsion. High-resolution transmission electron microscopy reveals non-equilibrium grain boundaries and grains ...
Kecskes LJ +6 more
core +1 more source