Results 41 to 50 of about 114,682 (347)

Generation of a Layer of Severe Plastic Deformation near Friction Surfaces in Upsetting of Steel Specimens

open access: yesMetals, 2018
Narrow layers of severe plastic deformation are often generated near frictional interfaces in deformation processes as a result of shear deformation caused by friction.
Sergei Alexandrov   +4 more
doaj   +1 more source

Superplastic Behavior of AZ31B Magnesium Alloy Processed by Equal Channel Angular Pressing (ECAP) [PDF]

open access: yesEngineering and Technology Journal, 2014
AZ31B magnesium alloy with initial grain size of 11.2 µm was grain refined using Equal Channel Angular Pressing (ECAP) the alloy was ECAP-processed up to 5-times at 473 K.
Ziad Tariq Madhloom, Azal R. Ismail
doaj   +1 more source

Effects of HE and ECAP processes on changes in microstructure and mechanical properties in copper, iron and zinc [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
The research presented in this paper concerns the influence of the rate of plastic deformation generated directly in the processes of severe plastic deformations on the microstructure and properties of three metals: copper, iron and zinc.
Mariusz Kulczyk   +4 more
doaj   +1 more source

Defects in High Entropy Alloy HfNbTaTiZr Prepared by High Pressure Torsion [PDF]

open access: yes, 2018
High entropy alloy HfNbTaTiZr was successfully processed by severe plastic deformation using high pressure torsion (HPT) and ultrafine grained microstructure was achieved.
Cizek, J.   +10 more
core   +1 more source

SIMULATION OF THE SEVERE PLASTIC DEFORMATION PROCESS IN NANOCRYSTAL ON THE BASIS OF INTERMETALLIDE [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2012
The mechanisms of structural transitions in a nanocrystal on the basis of intermetallic Ni3Al was studied by means of simulation of the process of the severe plastic deformation. For the structure analysis we used the simplexes of Voronoi-Delaunay, which
E.A. Dudnik, M.S. Skorobogatov
doaj  

Deformation mechanisms during severe plastic deformation of a Cu Ag composite [PDF]

open access: yesJournal of Alloys and Compounds, 2017
A Cu-37 at%Ag composite was produced by high-pressure torsion processing of elemental Cu and Agpowders at room temperature. The initial micrometer-sized powder particles were compressed directlyin the high-pressure torsion tool and subsequently deformed to different strain levels.
K.S. Kormout   +3 more
openaire   +2 more sources

Microstructure and hardness of bi-modified magnesium AZ31 alloys subjected to severe plastic deformation [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy
Magnesium alloys are known as attractive materials because of their low density and good thermal conductivity. However, compared to competing metallic materials such as aluminum alloys, magnesium alloys have lower strength.
Yazdi J., Farshidi M.H., Ebrahimi G.-R.
doaj   +1 more source

Multifractal Formalism in Tasks of Dynamic Plasticity [PDF]

open access: yesMATEC Web of Conferences, 2021
The application of the multifractal parameterization method for comparing structural changes observed in an optical microscope on steel St.3 subjected to severe plastic deformation and high-rate superplastic deformation is investigated.
Kuznetsov Aleksander   +2 more
doaj   +1 more source

Influence of severe plastic deformation on the precipitation hardening of a FeSiTi steel [PDF]

open access: yes, 2012
The combined strengthening effects of grain refinement and high precipitated volume fraction (~6at.%) on the mechanical properties of FeSiTi alloy subjected to SPD processing prior to aging treatment were investigated by atom probe tomography and ...
A Cerri   +37 more
core   +3 more sources

Structure and Mechanical Properties of Iron Subjected to Surface Severe Plastic Deformation by Friction: I. Structure Formation [PDF]

open access: yes, 2008
The severe plastic deformation of armco iron by friction is experimentally studied, and the results obtained are used to show that efficient grain refinementis possible in the temperature ranges of warm and hot deformation.
Byakova, Alexandra Victorovna   +2 more
core   +1 more source

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