A5110536429- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Thermal properties of materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Thermal Radiation and Cooling Technologies
- Microstructure and mechanical properties
- Metallurgy and Material Forming
- Thermography and Photoacoustic Techniques
- Metallurgical Processes and Thermodynamics
- Magnetic Properties and Applications
- Opinion Dynamics and Social Influence
- Thermoelastic and Magnetoelastic Phenomena
- Complex Network Analysis Techniques
- Metal Forming Simulation Techniques
- Iron and Steelmaking Processes
- High-pressure geophysics and materials
- Computational Drug Discovery Methods
- Cholinesterase and Neurodegenerative Diseases
- Mechanical stress and fatigue analysis
- Aluminum Alloys Composites Properties
- Advanced ceramic materials synthesis
- Nanofluid Flow and Heat Transfer
- Optical properties and cooling technologies in crystalline materials
- Evolutionary Game Theory and Cooperation
- Nicotinic Acetylcholine Receptors Study
Bauman Moscow State Technical University
2019-2023
Xi'an Medical University
2018
Comparative studies were carried out on the effect of high magnetic field pearlite transformation Al-containing carbon steels under furnace slow cooling condition. For 1.37Al-bearing steel, amount was only 6 ± 3 vol.-% without field, whereas full obtained a 12-T field. free-Al no occurred, lots bainite formed In addition, interlamellar spacing increased from 100 7 to 112 18 nm by application It has been proved that steel promoted and addition aluminium. This is part thematic issue Pearlitic...
Niobium (Nb), a microalloy element, is purposefully added to improve the thermal stability of ferrite grains in low‐carbon ultrafine grain (UFG) steel. Results manifest excellent Nb‐UFG steel with 0.028 wt% Nb addition by providing favorable kinetics and thermodynamic stabilization effects. The almost unchanged size mechanical properties steels annealed for 45 180 min at 500 °C are simultaneously obtained heterogeneous grains, NbC precipitates, geometrically necessary dislocations (GNDs)...
Ferrite/martensite dual-phase steel is indispensable for manufacturing different automobile parts. In the present study, uniaxial tension tests and metallographic analyses are performed to reveal fracture evolution in ferrite/martensite flange with a high hole-expansion ratio. The results indicate that steel, cracks originate at interface between ferrite grains martensite islands, Al2O3 sulfide inclusions. Further, dislocations obviously aggregate providing many preferential crack nucleation...
In the present research, cooling phase transformation characteristics and microstructures of a Co- Al-containing high-carbon steel were investigated under slow rates (0.02–2.0 °C/s). addition, by means Thermecmastor thermal simulator, temperatures measured, corresponding continuous (CCT) curves plotted. It was found that an extremely fine, fully pearlitic structure with interlamellar spacing 45 nm, hardness 425 HV1 (Vickers 1 kg load) obtained at rate 0.1 °C/s. The addition Co Al accelerated...
Abstract The work is devoted to the development of a tool that allows simulating diffusion in structures where phonons play main role heat transfer (dielectrics, semi-conductors). It shown nature phonon interaction fundamentally different from interactions classical gases. For first time, method for calculating phonons, takes into account all important features their with each other, presented. A computer simulation silicon sample two-dimensional formulation was carried out. differs Brownian...
Abstract Three alloys, containing niobium, vanadium and titanium, respectively, were refined the strengthening effect attained after adding them individually in a 20MnSi low-alloy rebar steel was investigated. The results show that due to addition of niobium is best, whereas titanium poorest. Grain refinement precipitation are main mechanisms observed niobium-steel vanadium-steel, only titanium-steel. Moreover, average grain size smallest among four types steels, while ferrite pearlite...
Currently, there is a rapid development of thermophysics solids associated with the need creating models high degree predictive reliability. This paper presents new approaches to solving relevant issues related study heat transfer in semiconductors and dielectrics, mainly concerning nano-structures. The first considered tasks creation statistical model processes interaction carriers – phonons rough surfaces solids. For time authors proposed method based on statistics slopes profile random...
In response to the increasingly severe thermal challenges brought by high heat flow in server electronic microchips, this work utilizes water-Al2O3 nanofluid coolant and microchannel cooling device study internal physical field further determine transfer performance of standard for improvement. particular, prediction two-dimensional fields is designed as a regression task using network five neural operators, taking eight design variables into account. Using integral solution method, Nusselt...
The thorough study of the heat carriers --- quasiparticles phonons interaction resulted in a pioneering method for calculating thermal conductivity nonmetallic solids. As interactions are much more complicated than those usual atoms and molecules, it is necessary to take into account presence two types with different properties; decay one phonon or fusion as result interaction; phonons, which elastic, other inelastic (moreover, type results from solving energy quasi-momentum conservation...
Abstract Modern studies of heat transfer in semiconductor and dielectric structures (integrated circuits, etc.) are based on the analysis interaction quasi-particles called phonons – quanta elastic waves propagating inside crystal lattice. In this paper, it is shown that to describe diffusion requires a detailed physics interactions. Firstly, we formulated method perform phonon calculations which takes into account peculiarities interaction. Secondly, developed brand-new algorithm, allow...