A5054509869- Welding Techniques and Residual Stresses
- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Metallurgy and Material Forming
- Engineering and Environmental Studies
- High Entropy Alloys Studies
- Microstructure and mechanical properties
- Additive Manufacturing Materials and Processes
- Material Properties and Failure Mechanisms
- High-Temperature Coating Behaviors
- Advanced Welding Techniques Analysis
- Intermetallics and Advanced Alloy Properties
- Aluminum Alloys Composites Properties
- Advanced materials and composites
- Material Properties and Applications
- Advanced ceramic materials synthesis
- Aluminum Alloy Microstructure Properties
- Additive Manufacturing and 3D Printing Technologies
- Advanced machining processes and optimization
- Hydrogen embrittlement and corrosion behaviors in metals
- Surface Treatment and Residual Stress
- Metal Forming Simulation Techniques
- Mineral Processing and Grinding
- Engineering Diagnostics and Reliability
- Advancements in Materials Engineering
E.O. Paton Electric Welding Institute
2015-2024
National Academy of Sciences of Ukraine
2020-2023
Donetsk Institute for Physics and Engineering named after O.O. Galkin
2013-2019
Donetsk National Technical University
2016
Institute of Physics
2012-2013
In the current contribution, wire arc additive manufacturing of non-equimolar Co-Cr-Fe-Mn-Ni high-entropy alloy using gas metal welding (GMAW) with powder-cored (MPCW) is proposed. The powder's filler designed feedstock contains Co-Cr-Mn-Ni components in equal atomic amounts relative to each other Fe stripe as a shield. proposed method provides possibility build bulk samples desired characteristics. Developed work approach superior number indicators such alternative methods obtaining HEAs...
The wetting of (Ti, Zr, Hf, Nb, Ta)C) high entropy carbide ceramics by molten metals was studied using a sessile drop method in vacuum environment. Fe, Co, and Ni demonstrate good with the Ta)C substrate forming final contact angle 20°, 30°, 22°, respectively. A detailed characterization solidified couples performed scanning electronic microscopy to study microstructure interaction region. Dissolution components into metal accompanied penetration ceramic's found occur during high-temperature...
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Subsequently, the delves into significance of AM process parameters when fabricating HEAs.Parameters such as laser power, scanning speed, and powder feed rate are analyzed for their effects on microstructure mechanical properties final product.Lastly, it addresses post-processing techniques additive-manufactured HEAs.It emphasizes importance steps heat treatment, surface finishing, machining in achieving desired material dimensional accuracy AMproduced HEA components.By presenting a...
Steels obtained by the thermo–mechanical control process (TMCP) possess a higher level of strength than conventional normalized steels due to fine‐grained microstructures generated during TMCP. Such enhancement opens ways decrease metal construction weight. At same time, TMCP have less thermal stability, in connection with lot factors affecting and governing grain growth heating steels. Herein, effects welding cycle (WTC) on structure properties ferritic–perlite (S460M) bainitic (alform...
The paper presents the results of experimental studies and engineering developments, which were base for creating a technology technique performance electroslag welding with consumable nozzle reinforcing elements building columns high-rise building.Experience application developed in construction is described.New machines special technological fixture at operations under assembly conditions was demonstrated.15 Ref., 7 Figures.
The mechanisms of structure formation in low-carbon steel deformed by warm twist extrusion (T def = 400°C) are considered. analysis electron backscattering diffraction shows that dynamic recrystallization and grain boundary sliding play an active role the process severe plastic deformation. It was shown deformations induce dissolution carbon.
The structural steels of strength class S350 and higher are widely used in manufacture metal structures different purpose.Their application allows significant reducing the total consumption as compared to products grades St.3 09G2S.In present work influence welding thermal cycles on properties structure HAZ metal, resistance joints cold crack formation is considered.The selection consumables for S490 was justified change mechanical welded analyzed.It revealed that with increase rate cooling...
A study was conducted in order to expand the knowledge base on mechanisms of influence refractory compounds weld pool modification metal structure.Results experiments inoculation TiN, SiC, NbC, VC, TiC, TiO 2 , Al O 3 MgO, ZrO dispersed particles liquid are given.Possibility inoculants as melt «microcoolants», centers for epitaxial initiation a new phase and surface-active dendritic structure welds analyzed.It is shown that under conditions welding low-alloyed steels by flux-cored wire...
A successful attempt to incorporate the advantages of severe plastic deformation (SPD) methods in continuous drawing process for low‐carbon steel is demonstrated. The structural features are considered on different scale levels, using a wide range methods. While combining shear deformation, which parallels basis SPD with conventional scheme, cyclic grain refinement could be reached. As result, plasticity becomes enhanced. At same time, an important characteristic such as residual stress also...
Welding of medium carbon alloy steels used in the manufacture special-purpose machinery imposes to solve two mutually exclusive problems – increase depth penetration base metal and reduce width thermal impact zone welded joints. To successfully this problem, it is necessary use arc welding processes with a concentrated heat source. One these pulsed current gas (PC-GMAW). The present researches have allowed estab-lishing, that PC-GMAW change difficult character, namely: on high-frequency...