Results 21 to 30 of about 20,384 (263)

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

Bulletin 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, Monika Skorupska, Jacek Skiba, Sylwia Przybysz, Julita Smalc-Koziorowska   +4 more
doaj   +1 more source

Microstructure evolution during severe plastic deformation [PDF]

Philosophical Magazine, 2011
Radiotracer diffusion studies of severely deformed, ultra-fine grained materials have revealed the presence of ultra-fast transport paths, which include "non-equilibrium" grain boundaries and free volume. Under some experimental conditions, percolating porosity is produced even in pure copper [Ribbe et al., Phys. Rev. Lett. 2009]. Micro-cracks may form
Divinski, Sergiy, Padmanabhan, Anantha K, Wilde, Gerhard   +2 more
openaire   +1 more source

Micromanufacturing by severe plastic deformation

Обробка матеріалів тиском, 2019
Beygelzimer Y., Kulagin R., Estrin Y., Davydenko O., Pylypenko A. Micromanufacturing by severe plastic deformation // Material working by pressure.  – 2019. – № 2 (49). - Р. 87-90. The production of precision small-scale objects is now a rapidly expanding industry worldwide.
Y. Beygelzimer, R. Kulagin, Y. Estrin, O. Davydenko, A. Pylypenko   +4 more
openaire   +2 more sources

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  

Deformation heterogeneity and texture in surface severe plastic deformation of copper [PDF]

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016
Comprehensive understanding of thermomechanical response and microstructure evolution during surface severe plastic deformation (S 2 PD) is important towards establishing controllable processing frameworks.
Saurabh Basu, Zhiyu Wang, Christopher Saldana   +2 more
openaire   +2 more sources

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

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

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

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +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