Results 11 to 20 of about 3,284,997 (300)

Self-Lubricating Effect of FeWO₄ Tribologically Synthesized from WC-(Fe-Mn-C) Composite during High-Speed Sliding against a HSS Disk

Lubricants, 2022
WC-(Fe-Mn-C) composites with γ-iron and γ + α’ matrices were sintered and then tested at sliding speeds in the range 7–37 m/s. The coefficient of friction was exponentially reduced as a function of sliding speed reaching its minimum at 37 m/s.
Nikolai Savchenko, Irina Sevostyanova, Sergei Tarasov   +2 more
doaj   +1 more source

The Macroscopic Phenomena in Plasticity

Metals, 2023
In this paper, the fundamental principles of plastic flow localization are briefly outlined. During the development of plastic flow, there is a changeover in the localization patterns conforming to the corresponding stage of work hardening based on the ...
Lev Zuev, Svetlana Barannikova
doaj   +1 more source

NUMERICAL STUDY OF STRESS-STRAIN LOCALIZATION IN THE TITANIUM SURFACE MODIFIED BY AN ELECTRON BEAM TREATMENT

Facta Universitatis. Series: Mechanical Engineering, 2016
Numerical simulation is performed to investigate the mesoscale stress-strain localization in a surface-modified commercial titanium alloy. The calculated crystalline microstructure corresponds to that observed in experiments and is accounted for in an ...
Ruslan Balokhonov, Varvara Romanova, Alexey Panin, Sergey Martynov, Marina Kazachenok   +4 more
doaj   +1 more source

Reduced order numerical modeling for calibration of complex constitutive models in powder pressing simulations [PDF]

Science of Sintering, 2017
Numerical simulations of different ceramic production phases often involve complex constitutive models, with difficult calibration process, relying on a large number of experiments.
Pandey Shwetank, Buljak Vladimir, Balac Igor   +2 more
doaj   +1 more source

Acoustic emission characterization of sliding wear under condition of direct and inverse transformations in low-temperature degradation aged Y-TZP and Y-TZP-AL2O3

Friction, 2018
In this research, results of the investigation of the sliding friction and wear of yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) and Y-TZP-Al2O3 samples preliminarily subjected to low-temperature degradation are reported.
Nikolai L. Savchenko, Andrey V. Filippov, Sergei Yu Tarasov, Andrey I. Dmitriev, Evgeny V. Shilko, Aleksandr S. Grigoriev   +5 more
doaj   +1 more source

Effect of the γ→ε Phase Transition on Transformation-Induced Plasticity (TRIP) of Nickel-Free High Nitrogen Steel at Low Temperatures

Metals, 2021
The deformation behavior, mechanical properties, and microstructure of Fe-Cr-Mn-0.53%N austenitic stainless steel were studied at a temperature range of 77 up to 293 K.
Natalia Narkevich, Yevgeny Deryugin, Yury Mironov   +2 more
doaj   +1 more source

Effect of Surface Modification of a Titanium Alloy by Copper Ions on the Structure and Properties of the Substrate-Coating Composition

Metals, 2020
To improve the strength properties, adhesion, and the thermal cycling resistance of ceramic coatings, the titanium alloy surface was modified with copper ions under different processing times.
Marina Fedorischeva, Mark Kalashnikov, Irina Bozhko, Olga Perevalova, Victor Sergeev   +4 more
doaj   +1 more source

Simulation of benzylpenicillin molecule distribution in slit-shaped Si nanopores [PDF]

EPJ Web of Conferences, 2019
A molecular dynamics study of the behavior of benzylpenicillin molecules in slit-shaped nanopores was carried out. A model silicon material with a pore size from 10 to 50 nm was chosen as a nanoporous structure.
Kryzhevich Dmitrij, Zolnikov Konstantin, Korchuganov Aleksandr, Tsukanov Alexey, Lotkov Aleksandr   +4 more
doaj   +1 more source

Effect of Aging Treatments on the Structure, Deformation Response, and R Transformation in Nanocrystalline Ti–50.9 at.% Ni Alloy

Metals, 2022
This paper presents the results of a transmission electron microscope study of the influence of the size, morphology, and spatial distribution of coherent Ti3Ni4 particles on the nature of the R transformation; the morphology of the R phase; and the ...
Tamara M. Poletika, Svetlana L. Girsova, Sergey M. Bitter, Aleksander I. Lotkov   +3 more
doaj   +1 more source

Increasing Low-Temperature Toughness of 09Mn2Si Steel through Lamellar Structuring by Helical Rolling

Metals, 2021
The aim of the paper was to investigate the helical rolling parameters (a number of passes) for the microstructural modification and the low-temperature impact toughness improvement of the 09Mn2Si High Strength Low-Alloyed (HSLA) steel.
Sergey Panin, Ilya Vlasov, Dmitry Moiseenko, Pavel Maksimov, Pavlo Maruschak, Alexander Yakovlev, Julia Gomorova, Ivan Mishin, Siegfried Schmauder   +8 more
doaj   +1 more source