A5018880256- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Material Properties and Failure Mechanisms
- Crystallography and Radiation Phenomena
- Cosmology and Gravitation Theories
- Atomic and Molecular Physics
- Astrophysics and Cosmic Phenomena
- Advanced Welding Techniques Analysis
- Magnetic confinement fusion research
- Relativity and Gravitational Theory
- Nuclear physics research studies
- Nuclear Physics and Applications
- Metallurgy and Material Forming
- Metal and Thin Film Mechanics
- Material Properties and Applications
- Radioactive Decay and Measurement Techniques
- Advanced materials and composites
- Microstructure and mechanical properties
- Particle physics theoretical and experimental studies
- Electron and X-Ray Spectroscopy Techniques
- Quantum Mechanics and Applications
- Welding Techniques and Residual Stresses
- Ionosphere and magnetosphere dynamics
- Fusion materials and technologies
- Radio Astronomy Observations and Technology
Institute of Geology Ufa Scientific Center
2024
Russian Academy of Sciences
1996-2024
National Research University Higher School of Economics
2013-2024
Ioffe Institute
2008-2023
Kuzbass State Technical University
2015-2023
Novosibirsk State Technical University
2013-2022
Yaroslavl State University
2022
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
2001-2021
Institute of Sociology
2021
Institute of Sociology
2021
This paper is an overview of the activity and state-of-the-art in field plasma aerospace applications. Both experimental results theoretical ideas are analysed. Principal attention focused on understanding physical mechanisms effect hypersonic aerodynamics. In particular, it shown that drag reduction can be achieved using a proper distribution heat sources around flying body. Estimates energetic efficiency thermal mechanism aerodynamic presented. The non-thermal caused by interaction flow...
The article presents the influence of structure formation on properties 321 metastable austenitic stainless steel in process cold radial forging (CRF). under study after austenitization was subjected to CRF at room temperature with degrees true strain (e) 0.26, 0.56, 1.00, 1.71 and 2.14. It has been shown that studied during consists three stages: lamellar austenite, trapezoidal structure, equiaxial grain structure. kinetics strain-induced α′-martensitic transformation is related stages...
In this paper, we report on the microstructure and properties study of Ni-Al system (75/25 at. %) coatings obtained by atmospheric plasma spraying (APS) high-velocity (HV-APS) methods which differ in speed sprayed particles. The structure phase composition were investigated using optical microscopy (OM), scanning electron (SEM), transmission (TEM), X-ray analysis (XRD). paper presents measurements results porosity microhardness, as well resistance to high-temperature oxidation. Additionally,...
Commercially pure aluminum and commercially titanium plates have been explosively welded annealed at temperature of 630 °C for 5, 20, 50 100 hours. The investigation intermetallic formed during explosion welding heat treatment processes has carried out. metallographic studies showed variation in the volume fraction according to deformation degree different interfaces. Moreover relation between layer thickness time “Al-Ti” composite annealing found. X-ray analysis reviled that process...
Flash butt welds between high carbon steel and chrome–nickel were studied in this article. Light electron microscopic studies have shown that the welded joints a complex structure consisting of several phases. In addition to pearlite colonies, austenite microvolumes regions strength martensite, contain brittle inclusions titanium sulphide carbide particles. The mechanical behaviour is negatively influenced by dramatic change hardness weld zone. Fractographic analysis dynamically fractured...
The structure and microhardness of Cu‐Ta joints produced by explosive welding were studied. It was found that, during welding, an intermediate layer 20⋯40 μ m thick with a finely dispersed heterophase structure, formed between the welded copper tantalum plates. studied scanning transmission electron microscopy. Microvolumes particles distributed in matrix microvolumes detected. have size 5⋯500 nm, predominance 5⋯50 nm particles. A mechanism for formation is proposed. interlayers reaches 280...
Multilayer materials produced by explosive welding of low carbon steel were investigated. Non-uniform structure interlayer boundary was characterized using visible light microscopy, SEM and TEM. It shown that 4 zones with different mechanical properties present in the welded seams. To estimate fatigue multilayer kinetic diagram failure used. revealed larger waves give more significant contribution to crack resistance. In experiments carried out current research number cycles higher than...
Recent research at three small tokamaks with different parameters located the Ioffe Institute—the spherical tokamak Globus-M, large aspect ratio FT-2 and compact TUMAN-3M—are reviewed. This overview covers energy confinement (Globus-M FT-2), L–H transition (TUMAN-3M Alfvén waves TUMAN-3M), ion cyclotron emission (TUMAN-3M), major plasma discharge disruption (Globus-M) scrape-off layer studies. A full-f global gyrokinetic modeling benchmark using synthetic diagnostics in is described....
The structural features of self-fluxing coatings obtained by air-plasma spraying with a unit annular injection powder are discussed in the article. It is shown that application an makes it possible to increase significantly efficiency particle heating contrast point into plasma jet. optical and scanning electron microscopy major part particles which form coating molten or plasticized condition revealed transmission high cooling rate these contributes formation γ-submicrocrystalline...
The focus of the TUMAN-3 and TUMAN-3M tokamaks programme is on issues improved confinement. transition from an ordinary ohmic regime into confinement mode has been found in circular limiter configuration a vessel with all-metallic walls limiters. signatures H-mode auxiliary heated have observed this regime. crucial role radial electric field was experiments internal probe biasing. Other techniques were demonstrated to trigger H-mode: short increase working gas puffing rate, minor radius...
An experimental search has been performed for bound systems of neutrons and negative pions, denoted by ${({\ensuremath{\pi}}^{\ensuremath{-}})}^{Z}{n}^{N}$. Such negatively charged nuclear fragments might be emitted in energetic proton-nucleus collisions. Upper limits production cross sections $Z=1$, $N=2\ensuremath{-}6$ $Z=2$, $N=3$ have derived assuming that the lifetime pion(s) is order free pion or longer.