Results 1 to 10 of about 21,684 (253)

Microstructure and mechanical properties of Al-1050 during incremental ECAP [PDF]

Key Engineering Materials, 2017
Incremental ECAP is a new method of ECAP process were the severe shear deformation is incrementally applied on the sample resulting in grain refining and new texture developing. The fundamental objective of the present work is an observation of effect of
Moturu, Shanmukha Rao, Qarni, M, Rosochowski, A, Salamati, M, Sivaswamy, G, Tamimi, S   +5 more
core   +7 more sources

On the Effect of Natural Aging Prior to Low Temperature ECAP of a High-Strength Aluminum Alloy [PDF]

Metals, 2018
Severe plastic deformation (SPD) can be used to generate ultra-fine grained microstructures and thus to increase the strength of many materials. Unfortunately, high strength aluminum alloys are generally hard to deform, which puts severe limits on the ...
Sebastian Fritsch, Martin Franz-Xaver Wagner   +1 more
doaj   +2 more sources

MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ULTRA-FINE GRAINED AZ31 ALLOY PROCESSED BY ECAP

Acta Metallurgica Slovaca, 2014
Commercial magnesium alloy AZ31 was processed by equal channel angular pressing preceded by hot extrusion (EX-ECAP). Microstructure evolution with strain due to ECAP was investigated by light and transmission electron microscopy. ECAP processing resulted
Miloš Janeček, Jitka Stráská, Jakub Čížek   +2 more
doaj   +3 more sources

Severe plastic deformation of Al strips through equal multi and single channel angular pressing [PDF]

Scientific Reports
Equal channel multi-angular pressing (ECMAP) and equal channel angular pressing (ECAP) of Al-1050 strips were carried out. The ECMAP and ECAP load-displacement behavior, peak load, microhardness distribution maps, homogeneity, and average values were ...
Elshafey Ahmed Gadallah, Mohamed Ibrahim Abd El Aal   +1 more
doaj   +2 more sources

X-ray Dark-Field Imaging for Improved Contrast in Historical Handwritten Literature

Journal of Imaging, 2022
If ancient documents are too fragile to be opened, X-ray imaging can be used to recover the content non-destructively. As an extension to conventional attenuation imaging, dark-field imaging provides access to microscopic structural object information ...
Bernhard Akstaller, Stephan Schreiner, Lisa Dietrich, Constantin Rauch, Max Schuster, Veronika Ludwig, Christina Hofmann-Randall, Thilo Michel, Gisela Anton, Stefan Funk   +9 more
doaj   +1 more source

Reconstructing the arrival direction of neutrinos in deep in-ice radio detectors

European Physical Journal C: Particles and Fields, 2023
In-ice radio detectors are a promising tool for the discovery of EeV neutrinos. For astrophysics, the implications of such a discovery will rely on the reconstruction of the neutrino arrival direction.
Ilse Plaisier, Sjoerd Bouma, Anna Nelles
doaj   +1 more source

Evaluation of the Weighted Mean X-ray Energy for an Imaging System Via Propagation-Based Phase-Contrast Imaging

Journal of Imaging, 2020
For imaging events of extremely short duration, like shock waves or explosions, it is necessary to be able to image the object with a single-shot exposure. A suitable setup is given by a laser-induced X-ray source such as the one that can be found at GSI
Maria Seifert, Mareike Weule, Silvia Cipiccia, Silja Flenner, Johannes Hagemann, Veronika Ludwig, Thilo Michel, Paul Neumayer, Max Schuster, Andreas Wolf, Gisela Anton, Stefan Funk, Bernhard Akstaller   +12 more
doaj   +1 more source

Investigation of Strain Inhomogeneity in Hexa-ECAP Processed AA7075 [PDF]

Archives of Metallurgy and Materials, 2021
Severe Plastic Deformation (SPD) techniques have been used by researchers for last three decades in order to obtain Ultra-Fine Grained (UFG) materials. Equal Channel Angular Pressing (ECAP) is preferred more than other SPD techniques thanks to its high ...
Serkan Öğüt, Hasan Kaya, Aykut Kentli, Kerim Özbeyaz, Mehmet Şahbaz, Mehmet Uçar   +5 more
doaj   +1 more source

Noise Reduction for Single-Shot Grating-Based Phase-Contrast Imaging at an X-ray Backlighter

Journal of Imaging, 2021
X-ray backlighters allow the capture of sharp images of fast dynamic processes due to extremely short exposure times. Moiré imaging enables simultaneously measuring the absorption and differential phase-contrast (DPC) of these processes. Acquiring images
Stephan Schreiner, Bernhard Akstaller, Lisa Dietrich, Pascal Meyer, Paul Neumayer, Max Schuster, Andreas Wolf, Bernhard Zielbauer, Veronika Ludwig, Thilo Michel, Gisela Anton, Stefan Funk   +11 more
doaj   +1 more source

Effect of ECAP process on mechanical properties and microstructure of AA-6061 recycled chips [PDF]

Engineering and Technology Journal, 2023
The oxidation of aluminum machined chips makes successful recycling via the traditional re-melting technique difficult. A viable solution to this problem is to utilize solid-state recycling to transform aluminum machined chips directly into semi-finished
Rawa Mohammed, Ayad Shahab, Alireza Rezaei   +2 more
doaj   +1 more source