Results 31 to 40 of about 200,245 (303)

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

Journal 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, P. Ghosh, V. Maier-Kiener, R. Pippan   +3 more
openaire   +2 more sources

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

Journal 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]

MATEC 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, Savenkov Georgii, Stolyarov Vladimir   +2 more
doaj   +1 more source

NFLUENCE OF NANOSTRUCTURATION ON THE SOUND VELOCITY IN ALUMINUM AL_99.50 [PDF]

European Journal of Materials Science and Engineering, 2017
The paper aims to determine the influence of nanostructure on sound velocity, to severe plastic deformation by cold multiaxial forging of aluminum. The deformation process is discontinuous and comprises deformation processes defining a severe plastic ...
Alin Marian CAZAC, Mihai Adrian BERNEVIG-SAVA, Andrei Victor SANDU, Constica BEJINARIU   +3 more
doaj  

INFLUENCE OF HEAT TREATMENT ON PROPERTIES OF EN AW 6082 ALUMINIUM ALLOY

Acta Metallurgica Slovaca, 2015
The main aim of this work is to point out on possibility of properties improving of the aluminium alloy EN AW 6082 (AlSi1MgMn) with an appropriate combination of pre-ECAP solution annealing, the application of the severe plastic deformation by ECAP ...
Petra Lackova, Marián Bursak, Ondrej Milkovic, Marek Vojtko, Lukas Dragosek   +4 more
doaj   +1 more source

Mechanical properties, microstructure and thermal stability of a nanocrystalline CoCrFeMnNi high-entropy alloy after severe plastic deformation

, 2015
An equiatomic CoCrFeMnNi high-entropy alloy (HEA), produced by arc melting and drop casting, was subjected to severe plastic deformation (SPD) using high-pressure torsion.
B. Schuh, F. Mendez-Martin, B. Völker, E. George, H. Clemens, R. Pippan, A. Hohenwarter   +6 more
semanticscholar   +1 more source

Reciprocating wear behavior of multi-directionally forged and aged Al-Cu-Li alloy

Materials Research Express
Al-Cu-Li alloys have drawn attention because of their decreased density, which is a result of the growing need for lightweight material systems in aerospace and aircraft applications.
C Jagadeesh, Shivananda Nayaka H, Ramesh S, Gajanan Anne   +3 more
doaj   +1 more source

Structural evolutions of metallic materials processed by severe plastic deformation

Materials Science and Engineering: R: Reports, 2018
Bulk nanostructured (ns)/ultrafine-grained (UFG) metallic materials possess very high strength, making them attractive for high strength, lightweight and energy efficient applications. The most effective approach to produce bulk ns/UFG metallic materials
Yang Cao, S. Ni, Xiaozhou Liao, M. Song, Yuntian Zhu   +4 more
semanticscholar   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

On the microstructure, texture and electrochemical properties of severely deformed and artificially aged lightweight AA2050 Al–Cu–Li alloy

Materials Research Express
Lightweight 3rd generation Al–Cu–Li alloy AA2050 was severely deformed via Multi Axial Forging (MAF) at 170 °C followed by artificial aging at 150 °C.
C Jagadeesh, Shivananda Nayaka H, Prithivirajan S, Ramesh S, Gajanan Anne   +4 more
doaj   +1 more source