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The self-similarity theory of high pressure torsion [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2016
By analyzing the problem of high pressure torsion (HPT) in the rigid plastic formulation, we show that the power hardening law of plastically deformed materials leads to self-similarity of HPT, admitting a simple mathematical description of the process ...
Yan Beygelzimer   +3 more
doaj   +7 more sources

High-pressure torsion for new hydrogen storage materials [PDF]

open access: yesScience and Technology of Advanced Materials, 2018
High-pressure torsion (HPT) is widely used as a severe plastic deformation technique to create ultrafine-grained structures with promising mechanical and functional properties.
Kaveh Edalati, Etsuo Akiba, Zenji Horita
doaj   +5 more sources

Slippage during High-Pressure Torsion: Accumulative High-Pressure Torsion—Overview of the Latest Results

open access: yesMetals, 2023
This overview examines the results of a study of the effect of slippage in high-pressure torsion (HPT). A number of papers in this area and the works of the authors of this overview are considered.
Dmitriy V. Gunderov   +3 more
doaj   +2 more sources

High-Pressure Torsion for Synthesis of High-Entropy Alloys [PDF]

open access: yesMetals, 2021
High-pressure torsion (HPT) is widely used not only as a severe plastic deformation (SPD) method to produce ultrafine-grained metals but also as a mechanical alloying technique to synthesize different alloys.
Kaveh Edalati   +4 more
doaj   +3 more sources

Heterogeneous flow during high-pressure torsion [PDF]

open access: yesMaterials Research, 2013
High-Pressure Torsion (HPT) has attracted significant attention in recent years as an effective technique to process ultrafine and nanostructured materials.
Roberto B. Figueiredo   +1 more
doaj   +5 more sources

Magnetic Shape Memory Nanocomposites Assembled with High Speed High Pressure Torsion [PDF]

open access: yesNanomaterials
When a severe plastic deformation (SPD) process is performed at high temperatures, it becomes more versatile. Designed originally for the bulk nanoconstruction of hard-to-deform alloys, high-speed high-pressure torsion (HSHPT) is an SPD method used in ...
Carmela Gurau   +6 more
doaj   +2 more sources

Influence of High-Pressure Torsion and Accumulative High-Pressure Torsion on Microstructure and Properties of Zr-Based Bulk Metallic Glass Vit105

open access: yesMetals, 2020
Vit105 (Zr52.5Cu17.9Ni14.6Al10Ti5 at. %) bulk metallic glass samples were processed by high-pressure torsion and accumulative high-pressure torsion. By DSC, XRD and SANS methods it was shown that accumulative high-pressure torsion allows for achieving ...
Dmitry Gunderov   +6 more
doaj   +3 more sources

Texture evolution in high-pressure torsion processing [PDF]

open access: yesProgress in Materials Science, 2022
Abstract Among the severe plastic deformation processing (SPD) of materials, high-pressure torsion (HPT) is known to induce considerable amounts of plastic strain and crucial grain refinement up to the nanometer scale. There have been several reviews on the mechanical properties and/or microstructure correlations of SPD-processed materials published ...
Hiba Azzeddine   +2 more
exaly   +3 more sources

High-pressure torsion of hafnium [PDF]

open access: yesMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2010
Abstract Pure Hf (99.99%) is processed by high-pressure torsion (HPT) under pressures of 4 and 30 GPa to form an ultrafine-grained structure with a gain size of ∼180 nm. X-ray diffraction analysis shows that, unlike Ti and Zr, no ω phase formation is detected after HPT processing even under a pressure of 30 GPa.
Yoji Mine   +2 more
exaly   +2 more sources

Effect of annealing on the magnetic microstructure of high-pressure torsion iron: the relevance of higher-order contributions to the magnetic small-angle neutron scattering cross section [PDF]

open access: yesIUCrJ, 2023
The development of higher-order micromagnetic small-angle neutron scattering theory in nanocrystalline materials is still in its infancy. One key challenge remaining in this field is understanding the role played by the microstructure on the magnitude ...
Mathias Bersweiler   +9 more
doaj   +2 more sources

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