Results 51 to 60 of about 113,676 (348)

Structure and Electrical Properties of AlFe Matrix Composites with Graphene

Applied Sciences, 2023
Composites based on Al-Fe alloys and reinforced with three-layer graphene sheets were synthesized “in situ” under a layer of molten salts. Composites containing 0.12 wt.% graphene were subjected to severe plastic deformation via high-pressure torsion ...
Anastasiia N. Petrova, Dmitry Y. Rasposienko, Irina G. Brodova, Liudmila A. Yolshina, Roman V. Muradymov, Artem A. Markin, Vyacheslav V. Marchenkov, Bogdan M. Fominykh   +7 more
doaj   +1 more source

High cycle fatigue of ARMCO iron severely deformed by ECAP [PDF]

, 2017
The high-cycle fatigue behavior of ARMCO iron severely deformed by Equal Channel Angular Pressing (ECAP) at room temperature through route Bc until 8 passes, with an average grain size of ~365 nm, was studied and compared with the same material in the ...
Cabrera Marrero, José M., Higuera Cobos, Oscar Fabián, Muñoz Bolaños, Jairo Alberto   +2 more
core   +2 more sources

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.
A. Pylypenko, O. Davydenko, Y. Estrin, R. Kulagin, Y. Beygelzimer   +4 more
openaire   +2 more sources

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Influence of the drece process of severe plastic deformation on the mechanical properties of the ultra-low carbon interstitial free steel [PDF]

, 2018
This research paper shows the influence of a repeated SPD (Severe Plastic Deformation) plastic forming with the DRECE technique (Dual Rolls Equal Channel Extrusion) on hardening of low carbon IF steel. The influence of number of passes through the device
Bednarczyk, Iwona, Jabłońska, Magdalena, Kowalczyk, Karolina, Rusz, Stanislav   +3 more
core   +1 more source

CSF Levels of NPTX2 Are Associated With Less Brain Atrophy Over Time in Cognitively Unimpaired Individuals

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez, Corinne Pettigrew, Yuxin Zhu, Claire Anderson, Guray Erus, Christos Davatzikos, Michael Miller, Abhay Moghekar, Sungtaek Oh, Chan‐Hyun Na, Marilyn Albert, Paul Worley, Anja Soldan   +12 more
wiley   +1 more source

Nanostructural Formation by Severe Plastic Deformation

Metalurgija, 2004
The influence of severe plastic deformations on structural, mechanical and plastic properties of ARMCO-Fe in equal-channel angular pressing procedure was investigated. Mathematical simulations of stress and temperature fields were applied, too.
Kvačkaj, T., Mamuzić, I., Čech, J., Vrchovinský, V., Mišičko, R., Vlado, M., Pokorny, I., Novy, Z.   +7 more
openaire   +2 more sources

Severe Plastic Deformation and Thermomechanical Processing: Nanostructuring and Properties

Metals, 2020
The research field of severe plastic deformation (SPD) offers innovative potential for manufacturing bulk metallic materials as well as for modifying their surfaces [...]
Andrea Bachmaier, Thierry Grosdidier, Yulia Ivanisenko   +2 more
doaj   +1 more source

Nanostructure and properties of a Cu-Cr composite processed by severe plastic deformation

, 2008
A Cu-Cr composite was processed by severe plastic deformation to investigate the role of interphase boundaries on the grain size reduction mechanisms. The as-deformed material exhibits a grain size of only 20nm.
Aguilar, Blavette, F. Vurpillot, Gault, Hall, Ivanisenko, Korznikov, Korznikov, Ma, Massalski, Michaelsen, P. Jessner, Petch, R. Pippan, Sabirov, Sauvage, Sauvage, Sauvage, Shen, Valiev, Valiev, Wert, X. Sauvage, Yavari, Zhu   +24 more
core   +4 more sources

Microstructure and mechanical properties of an Mg-3Zn- o.5Zr-5HA nanocomposite processed by ECAE [PDF]

, 2014
Mg matrix composites reinforced by natural bone constituent hydroxyapatite (HA) particles have shown promising in-vitro corrosion resistance but are inconsistent in both electrochemical and mechanical performances because of severe particle segregations.
Huang, Y, Li, J
core   +1 more source