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Your search keyword '"Lopatina, Ekaterina Sergeevna"' showing total 14 results
Start Over Author "Lopatina, Ekaterina Sergeevna" Publication Type Academic Journals
14 results on '"Lopatina, Ekaterina Sergeevna"'

1. Determination and structural analysis of process parameters for combined rolling and extrusion of rods from magnesium ingots

Author

Sidelnikov, Sergey Borisovich, Lopatina, Ekaterina Sergeevna, Parubok, Andrey Vasilyevich, Voroshilov, Denis Sergeevich, Konstantinov, Igor Lazarevich, Mansurov, Yulbarskhon Nabievich, Galiev, Roman Ilsurovich, Ber, Vladimir Ivanovich, Voroshilova, Marina Vladimirovna, Belokonova, Irina Nikolaevna, and Lopatin, Vladimir Alexandrovich

Published
2024
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2. Investigation of various process attributes in an ingotless rolling-extrusion process imposed on waste aluminum alloy rods

Author

Sidelnikov, Sergey Borisovich, Lopatina, Ekaterina Sergeevna, Parubok, Andrey Vasilyevich, Kuzin, Dmitriy Igorevich, Galiev, Roman Ilsurovich, Voroshilov, Denis Sergeevich, Lezhnev, Sergey Nikolaevich, Konstantinov, Igor Lazarevich, Durnopyanov, Alexander Vasilyevich, Lopatin, Vladimir Alexandrovich, and Belokonova, Irina Nikolaevna

Published
2024
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3. Modeling and investigation of combined processes of casting, rolling, and extrusion to produce electrical wire from alloys Al–Zr system

Author

Sidelnikov, Sergey Borisovich, Bespalov, Vadim Mikhaylovich, Voroshilov, Denis Sergeevich, Lopatina, Ekaterina Sergeevna, Konstantinov, Igor Lazarevich, Mansurov, Yulbarskhon Nabievich, Motkov, Mikhail Mikhaylovich, Galiev, Roman Ilsurovich, Ber, Vladimir Ivanovich, Belokonova, Irina Nikolaevna, and Durnopyanov, Alexander Vasilyevich

Published
2024
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5. Development and research of technology for obtaining and properties of welding wire from Al–Mg–Sc alloys using combined methods of thermal deformation treatment

Author

Sidelnikov, Sergey Borisovich, Voroshilov, Denis Sergeevich, Lopatina, Ekaterina Sergeevna, Yakivyuk, Olga Viktorovna, Konstantinov, Igor Lazarevich, Mansurov, Yulbarskhon Nabievich, Orelkina, Tamara Aleksandrovna, Galiev, Roman Ilsurovich, Ber, Vladimir Ivanovich, Belokonova, Irina Nikolaevna, and Durnopyanov, Alexander Vasilyevich

Published
2024
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6. Development and research of technology for obtaining welding wire from aluminum-silicon alloys using rolling-extrusion

Author

Sidelnikov, Sergey Borisovich, Sokolov, Ruslan Evgenyevich, Belyaev, Sergey Vladimirovich, Dovzhenko, Nikolay Nikolaevich, Lopatina, Ekaterina Sergeevna, Konstantinov, Igor Lazarevich, Voroshilov, Denis Sergeevich, Gorbunov, Yuriy Alexandrovich, Mansurov, Yulbarskhon Nabievich, Galiev, Roman Ilsurovich, and Ber, Vladimir Ivanovich

Published
2024
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7. Investigation the structure and properties of deformed semi-finished products produced from chips of Al–Mg alloys system alloyed with scandium

Author

Sidelnikov, Sergey Borisovich, Zagirov, Nikolay Nikolaevich, Loginov, Yuri Nikolaevich, Lopatina, Ekaterina Sergeevna, Voroshilov, Denis Sergeevich, Lezhnev, Sergey Nikolaevich, Ivanov, Evgeniy Vladimirovich, Saparova, Anastasiya Sergeevna, Voroshilova, Marina Vladimirovna, Ber, Vladimir Ivanovich, Feskova, Elena Vasilyevna, and Zagirova, Elena Vladimirovna

Published
2023
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9. Investigation of rolling modes, structure, and properties of aluminum-magnesium alloy plates with a reduced scandium content

Author

Sidelnikov, Sergey Borisovich, Baranov, Vladimir Nikolaevich, Konstantinov, Igor Lazarevich, Zenkin, Evgeniy Yuryevich, Lopatina, Ekaterina Sergeevna, Bezrukikh, Aleksandr Innokentyevich, Voroshilov, Denis Sergeevich, Yuryev, Pavel Olegovich, Mansurov, Yulbarskhon Nabievich, Voroshilova, Marina Vladimirovna, Belokonova, Irina Nikolaevna, and Galiev, Roman Ilsurovich

Published
2022
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10. Modeling and research of the deformation treatment process of 585 gold fineness alloys for obtaining wire for jewelry purpose

Author

Sidelnikov, Sergey Borisovich, Ditkovskaia, Yuliia Dmitrievna, Lopatina, Ekaterina Sergeevna, Voroshilov, Denis Sergeevich, Lebedeva, Olga Sergeevna, Konstantinov, Igor Lazarevich, Galiev, Roman Ilsurovich, Mansurov, Yulbarskhon Nabievich, Ber, Vladimir Ivanovich, Rudnitskiy, Edvard Anatolyevich, and Lopatin, Vladimir Aleksandrovich

Published
2022
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11. Modeling and investigation of combined processes of casting, rolling, and extrusion to produce electrical wire from alloys AleZr system.

Author

Sidelnikov, Sergey Borisovich, Bespalov, Vadim Mikhaylovich, Voroshilov, Denis Sergeevich, Lopatina, Ekaterina Sergeevna, Konstantinov, Igor Lazarevich, Mansurov, Yulbarskhon Nabievich, Motkov, Mikhail Mikhaylovich, Galiev, Roman Ilsurovich, Ber, Vladimir Ivanovich, Belokonova, Irina Nikolaevna, and Durnopyanov, Alexander Vasilyevich

Subjects
CASTING (Manufacturing process), ELECTRIC wire, METAL extrusion, ALLOYS, ZIRCONIUM
Abstract

The results of modeling and research of casting, rolling, and extrusion processes for producing wire from AleZr system alloys and determining its physical and mechanical properties have been presented. When implementing combined processes for processing aluminum alloys, the number of operations is significantly reduced, productivity and yield are increased. As a result of the conducted research, the influence of alloy preparation modes and their chemical composition on the physical, mechanical and electrical properties of longish semifinished products from AleZr system alloys obtained by combined rollingextrusion (CRE) and ingotless rolling-extrusion (IRE) methods were investigated. The simulation of the CRE process for one of these alloys of the system was carried out in the DEFORM 3D software package using data on its rheological properties obtained by the hot torsion method. Based on the modeling results, the optimal modes for conducting experimental studies were selected. The features of metal forming were experimentally studied, the temperature-velocity and technological parameters of combined processing were found, as well as the properties of cast billets, including those obtained using an electromagnetic mold (EMM). The results of experimental studies of the CRE and IRE processes suggest that it is possible to obtain longish deformed semifinished products from alloys AleZr system with a level of physical, mechanical and electrical properties that meet international standards. At all technological stages, including drawing, the structure of the metal was studied, and data on the physical and mechanical properties of hot-extruded rods and wire in cold-deformed and annealed states was obtained. The heat resistance of wire made from the investigated alloys was studied and it was found that after testing at a temperature of 280 °C and a holding time of 1 h, it satisfies the requirements of the AT3 type standard with a maximum permissible long-term operating temperature of 210 °C. Recommendations are given for industrial implementation; alloys containing 0.15e0.20% zirconium and 0.10e0.15% iron are recommended for the manufacture of AT1 type wire without heat treatment, as well as 0.25e0.30% Zr and 0.2e0.25% Fe for AT3 wire type with heat treatment. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Investigation structure and properties of wire from the alloy of AL-REM system obtained with the application of casting in the electromagnetic mold, combined rolling-extruding, and drawing

Author

Sidelnikov, Sergey Borisovich, Voroshilov, Denis Sergeevich, Motkov, Mikhail Mikhaylovich, Timofeev, Viktor Nikolaevich, Konstantinov, Igor Lazarevich, Dovzhenko, Nikolay Nikolaevich, Lopatina, Ekaterina Sergeevna, Bespalov, Vadim Mikhaylovich, Sokolov, Ruslan Evgenyevich, Mansurov, Yulbarskhon Nabievich, and Voroshilova, Marina Vladimirovna

Published
2021
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14. Investigation the structure and properties of deformed semi-finished products produced from chips of AleMg alloys system alloyed with scandium.

Author

Sidelnikov, Sergey Borisovich, Zagirov, Nikolay Nikolaevich, Loginov, Yuri Nikolaevich, Lopatina, Ekaterina Sergeevna, Voroshilov, Denis Sergeevich, Lezhnev, Sergey Nikolaevich, Ivanov, Evgeniy Vladimirovich, Saparova, Anastasiya Sergeevna, Voroshilova, Marina Vladimirovna, Ber, Vladimir Ivanovich, Feskova, Elena Vasilyevna, and Zagirova, Elena Vladimirovna

Subjects
SCANDIUM, INTERMEDIATE goods, ALUMINUM alloys, METALWORK, POWDER metallurgy
Abstract

The article presents the results of studies that make it possible to solve the problem of processing secondary waste from expensive aluminum alloys without irretrievable loss of metal. For this purpose, tasks were set and solved for the development of technological schemes for obtaining longish deformed semi-finished products from chip waste of AleMg alloys 01570 and 1580 alloyed with scandium using methods of powder metallurgy and metal forming. For their experimental verification, the operations of chip briquetting, combined rolling-extrusion (continuous extrusion), sectional rolling, hot extrusion and drawing in combination with heat treatment were applied. According to these schemes, semi-finished products in the form of rods and wires were obtained. Structure and mechanical properties were investigated. It has been revealed that when hot-extruded rods are obtained from chip briquettes of alloy 01570 on a vertical hydraulic press, even with significant degrees of deformation during extrusion, the margin of plastic properties is small and makes it possible to obtain a wire with a diameter of only 4.2 mm after drawing. The processing of briquettes from 1580 alloy chips using the combined rollingextrusion method makes it possible to obtain after cold deformation a wire with a diameter of up to 3 mm. At the same time, the influence of the annealing process on the structure and properties of deformed semi-finished products from the investigated alloys was studied. It is shown that due to the low plasticity of the investigated material cold working of the rods must be carried out with small degrees of deformation, alternating it with intermediate annealing according to the proposed regime. An analysis of the physical and mechanical properties of the wire obtained using combined processing showed that its strength and plastic properties are comparable to the properties of the wire obtained from a cast billet, and the structure is characterized by a high degree of elaboration and compactness. Thus, as a result of the research, technological schemes have been developed and processing parameters have been determined for the production of rods and wire from graded chip waste of alloys 01570 and 1580 using compaction, discrete and continuous extrusion, as well as cold drawing. [ABSTRACT FROM AUTHOR]

Published
2023
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