Results 1 to 10 of about 4,726,498 (283)

Enhanced Erosion Resistance of an Ultrafine-Grained Ti Alloy with a PVD Coating

Metals, 2022
This paper presents the results of a comprehensive study of the erosive wear resistance, strength, and adhesive characteristics of the high-temperature structural titanium alloy Ti-5.7Al-3.8Mo-1.2Zr-1.3Sn (the Russian grade VT8M-1) with coarse-grained ...
Roman R. Valiev, Konstantin S. Selivanov, Marina K. Smyslova, Yuri M. Dyblenko, Yana N. Savina, Ruslan Z. Valiev, Irina P. Semenova   +6 more
doaj   +1 more source

Microstructural Features and Surface Hardening of Ultrafine-Grained Ti-6Al-4V Alloy through Plasma Electrolytic Polishing and Nitrogen Ion Implantation

Metals, 2021
This work studies a near-surface layer microstructure in Ti-6Al-4V alloy samples subjected to plasma electrolytic polishing (PEP) and subsequent high-energy ion implantation with nitrogen (II).
Marina K. Smyslova, Roman R. Valiev, Anatoliy M. Smyslov, Iuliia M. Modina, Vil D. Sitdikov, Irina P. Semenova   +5 more
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Influence of the Chromium Content in Low-Alloyed Cu–Cr Alloys on the Structural Changes, Phase Transformations and Properties in Equal-Channel Angular Pressing

Metals, 2021
The quantitative concentration of alloying elements in low-alloyed copper alloys is an important factor in forming electrical and mechanical characteristics.
Denis A. Aksenov, Rashid N. Asfandiyarov, Georgy I. Raab, Elvira I. Fakhretdinova, Maria A. Shishkunova   +4 more
doaj   +1 more source

New Research on Teacher Leadership in Schools: Efficacy of a survey method for analyzing multiple dimensions of leadership

Journal of Interdisciplinary Teacher Leadership, 2021
In the past decade, teacher leadership has emerged as a key strategy for improving the quality of education in U.S. schools. Major foundations, federal education programs, and professional organizations are providing significant support for teacher ...
Rolf Blank
doaj   +1 more source

Fatigue Properties of Ti Alloys with an Ultrafine Grained Structure: Challenges and Achievements

Metals, 2022
Ultrafine-grained (UFG) structure formation in Ti alloys, by severe plastic deformation (SPD) processing and enhancement of their mechanical properties, including fatigue properties, has been demonstrated in numerous studies in the past 20 years.
Irina Petrovna Semenova, Yulia Mikhailovna Modina, Andrey Gennadievich Stotskiy, Alexander Vadimovich Polyakov, Mikhail Vladimirovich Pesin   +4 more
doaj   +1 more source

Building a noise-tolerant code based on a holographic representation of arbi-trary digital information

Компьютерная оптика, 2020
The article considers a method of error-correcting coding based on the holographic representation of a digital signal. The message encoding process is a mathematical simulation of a hologram created in virtual space by a wave from an input signal source.
A.L. Timofeev, A.Kh. Sultanov
doaj   +1 more source

Effect of Cd and SPD on structure, physical, mechanical, and operational properties of alloy of Cu-Cr-Zr

Reviews on Advanced Materials Science, 2020
An increase in the service life of electrical products from copper and its alloys is directly related to an increase in the wear resistance of materials.
Aksenov Denis A., Raab Georgiy I., Asfandiyarov Rashid N., Semenov Vladimir I., Shuster Lev Sh.   +4 more
doaj   +1 more source

Hidden Authentication of the User Based on Neural Network Analysis of the Dynamic Profile

Proceedings of the International Conference on Applied Innovations in IT, 2020
The problem of continuous hidden user authentication based on the analysis of keyboard handwriting is considered. The main purpose of the analysis is to continuously verify the identity of the subject during his work on the keyboard.
Anastasiya Sivova, Alexey Vulfin, Konstantin Mironov, Anastasiya Kirillova   +3 more
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Evaluation of Creep Strength of Heterogeneous Welded Joint in HR6W Alloy and Sanicro 25 Steel

Archives of Metallurgy and Materials, 2017
This article presents the results of investigations on HR6W alloy and Sanicro 25 steel and the dissimilar welded joint made of them. The characteristic images of microstructure of the investigated materials in the as-received condition and following the ...
Zieliński A., Dobrzański J., Purzyńska H., Sikora R., Dziuba-Kałuża M., Kania Z.   +5 more
doaj   +1 more source

Development of Structural Steel Containing 3÷5 wt% Al with Microlaminated Microstructure

Archives of Metallurgy and Materials, 2017
The aim of this work was to develop basic parameters of hot rolling and controlled cooling technology allowing to obtain the microlaminated (lamellar) microstructure in a lean-alloy structural steel containing 3÷5 wt % Al. Thermo-mechanical rolling tests
Garbarz B., Adamczyk M., Niżnik-Harańczyk B.   +2 more
doaj   +1 more source