Results 91 to 100 of about 33,857 (279)
Modelling of High Pressure Torsion using FEM
Procedia Engineering, 2017 High Pressure Torsion (HPT) is historically the first and is currently most common process of the severe plastic deformation (SPD). HPT is used for producing nanocrystalline structures in metals and alloys, as well as for cold welding of powders. The result of the HPT treatment is determined by the flow kinematics and the stress state of a material ...
Kulagin, Roman +4 more
openaire +3 more sources
Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
Materials Research, 2012 Ti-6Al-7Nb alloys are being evaluated for biomedical applications, in substitution of the more conventional Ti-6Al-7V. Both types of alloys present a microstructure containing the α and the β phases, which result in good compromise for ...
Tiago Santos Pinheiro +5 more
doaj
Amorphization of TiNi induced by high-pressure torsion
Philosophical Magazine Letters, 2004 Using high-resolution electron microscopy, we investigated the initial stages of high-pressure-torsion-induced crystalline-to-amorphous transformation of TiNi. It is found that the deformation-induced amorphization initiated from dislocation core regions in the interior of grains and from grain boundaries.
J. Y. Huang +3 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Processing a twinning-induced plasticity steel by high-pressure torsion [PDF]
, 2012 A high-manganese steel was processed by high-pressure torsion for up to 10 turns under a pressure of 6.0 GPa. The results show the development of a reasonably homogeneous structure with a peak hardness of Hv ≈ 450.
Kawasaki, Megumi +5 more
core +1 more source
MATEC Web of Conferences, 2017 The impact of the high-silicon aluminum alloy initial microstructure on the quality of the coating formed by microarc oxidation (MAO) has been studied.
Dudareva Natalia.Y. +2 more
doaj +1 more source
Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry
Advanced Functional Materials, EarlyView.In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite +5 more
wiley +1 more source
Al/C60 Nanocomposites Fabricated by High-Pressure Torsion [PDF]
, 2018 Al-2 vol pct fullerene (C60) composites with relative densities of >0.98 are manufactured by high-pressure torsion of ball-milled powders under an applied pressure of 6 GPa.
Asgharzadeh, H, Joo, SH, Kim, HS
core +1 more source
Advanced Functional Materials, EarlyView.A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan +16 more
wiley +1 more source
Effects of water and fluorine on the viscosity of albite melt at high pressure: a preliminary investigation [PDF]
, 1985 The viscosities of fluorine- and water-bearing melts based on albite composition have been determined at 7.5, 15 and 22.5 kbar by the falling-sphere method. All melt viscosities decrease isothermally with increasing pressure.
Mysen, Bjørn O., Dingwell, Donald B.
core +1 more source