Deformation behavior during hot processing of the alloy of the Al-Mg system economically doped with scandium

Dovzhenko, Nikolay N.; Рущиц, С. В.; Dovzhenko, I. N.; Sidelnikov, S. B.; Voroshilov, Denis Sergeevich; Demchenko, Alexander Igorevich; Баранов, В. Н.; Bezrukikh, A. I.; Yuryev, Pavel Olegovich

doi:10.1007/s00170-021-07338-2

Cited by 15 publications

(3 citation statements)

References 40 publications

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“…Then the decomposition of the solid solution during subsequent heat treatment proceeds with the release of complex dispersed crystals of intermetallic phases of the Al 3 (Sc, Zr) type, which, like the Al 3 Sc phase, improve the physical and mechanical properties of the alloy [9, 11, 20, 23, 27-30, 35, 38-40, 42, 43, 47-50]. Therefore, in order to ensure the maximum content of scandium and zirconium in a supersaturated solid solution when casting large-sized ingots from aluminum-magnesium alloys, high crystallization rates of the melt should be used in order to exclude the formation of primary aluminides of scandium and zirconium during crystallization and cooling of the ingot [11,20,24,46,[48][49][50][51].…”

Section: Resultsmentioning

confidence: 99%

Modeling of casting technology of large-sized ingots from deformable aluminum alloys

Bezrukikh

Баранов

Константинов

et al. 2022

Int J Adv Manuf Technol

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Industrial technology has been developed for the semi-continuous casting of large-sized ingots from deformable aluminum alloys through the use of complex modeling, including computer modeling and physical modeling. The ProCAST and ANSYS software packages equipped with the FLUENT module were used for computer modeling. The physical modeling was carried out on a laboratory semi-continuous casting unit (SCCU), which represents a tenfold reduced physical model of an industrial casting unit for the vertical semi-continuous casting of ingots from aluminum alloys. An aluminum-magnesium alloy with the addition of 0.05% (wt.) of scandium was used as the object of modeling. The results of computer modeling were tested at the SCCU, and then computer modeling was carried out for casting a large ingot. According to the modes obtained in the simulation, an ingot with a section of 1310×560 mm was cast under industrial conditions, which had a good surface quality with the absence of casting defects. In the microstructure of an industrial ingot and an ingot cast on the SCCU, there were no primary intermetallic compounds Al 3 (Sc, Zr), which makes it possible to strengthen the alloy upon annealing. To check the manufacturability during rolling, billets with a size of 40×120×170 mm were cut from these ingots, which were hot-rolled to a thickness of 5 mm, and then cold rolled to a thickness of 1 mm. The rolling results revealed good workability of the alloy, which was re ected in the high quality of the surface and the absence of cracks at the edges of the rolled stock. The mechanical properties of sheets obtained from both ingots were at the same level, which proves the reliability of casting modes for ingots obtained by complex modeling and the validity of their use for industrial conditions of the semi-continuous casting of large ingots from aluminum alloys.

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Section: Resultsmentioning

confidence: 99%

Modeling of casting technology of large-sized ingots from deformable aluminum alloys

Bezrukikh

Баранов

Константинов

et al. 2022

Int J Adv Manuf Technol

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“…To test the operation of the SCCU a new Russian alloy 1580 of the Al-Mg system was used with the addition of scandium, which was studied in [27,28,[36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. The mechanical properties of the obtained deformed seminished products were studied in [27,[39][40][41][42][43][44][45][46][47][48]. Also, computer simulation was carried out to study the modes of rolling of a new alloy [36][37][38][39].…”

Section: Methods Of Carrying Out Researchmentioning

confidence: 99%

Physical Modeling of Semi-continuous Casting for Developing an Industrial Technology of Producing Ingots From New Deformable Aluminum Alloys

Bezrukikh

Баранов

Константинов

et al. 2021

Preprint

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A physical model of a semi-continuous casting unit (SCCU) has been manufactured and tested, designed to develop a technology for casting flat and cylindrical ingots from experimental aluminum alloys for subsequent metal forming. The SCCU includes two induction melting furnaces with a tilting mechanism, a rotary mixer, a metal path system, a vertical casting machine, a jib crane, water supply, power supply, monitoring and control systems. SCCU testing was carried out on six heats of alloy 1580 of the Al-Mg system with the addition of scandium. In the first three ingots the scandium content was 0.05% (wt.). In the second series of three heats ingots with 0.075% (wt.) scandium were cast. The ingots had a high surface quality, did not have casting defects, and there were no inclusions of primary intermetallic compounds Al3(Sc, Zr) in the structure of the ingots. The bottom and runner parts of the ingots were cut off, all faces were milled and subjected to homogenization annealing in a two-stage mode: the first heating at 350 °C, 3 h, the second heating for 1 h to 425 °C, 4 h. Then the billets were hot rolled from 40 to 5 mm, annealed at 380 °C, 1 h, rolled at room temperature to a thickness of 1 mm and annealed at 350 °C, 3 h. After that, tensile mechanical properties were tested. The results of modeling ingot casting were tested in industrial conditions when casting a large ingot with a cross section of 2100×500 mm. A template was cut from the ingot with the dimensions of a billet for rolling, as that obtained from an experimental ingot cast at the SCCU. The billet was subjected to hot and cold rolling according to the conditions used for rolling the experimental ingot. At the same time the modes of heat treatment of sheet semi-finished products were also repeated. The mechanical properties of sheets of alloy 1580 rolled from experimental and industrial ingots practically did not differ. This proves the reliability of casting modes for ingots obtained at the SCCU and tested for casting industrial ingots.

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“…The understanding of metals and alloys deformation behavior during hot working is of a great importance, rst of all, from the point of view of product properties formation. To study machinability and to establish optimal hot deformation parameters for certain metals and alloys, a number of research groups have made efforts to carry out thermomechanical experiments (compression, tensile and torsion tests) at wide temperatures and strain rates [5][6][7][8]. At the same time, the processes of metal forming in industrial conditions are different from the ones in laboratory.…”

Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on the Microstructure and Mechanical Properties of Bars from Al-Cu-Mg Alloy Processed by Multipass Radial-Shear Rolling

Akopyan¹,

Gamin²,

Галкин³

et al. 2021

Preprint

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The study of microstructure and mechanical properties formation of A2024 alloy obtained by the multipass radial-shear rolling (RSR) method is discussed in this article. FEM simulation was carried out that made it possible to evaluate the influence degree of rolling temperature-velocity parameters on the strain state of material. It has been found the increase in rotary velocity of rolls significantly influences on the deformation heating of bar after RSR (predominantly in its surface layer). The combination of rolling temperature-velocity conditions at selection of deformation regime has complex effect on structure and properties formation. The analysis of sizes and distribution of phase particles has shown that the rolling at lower temperatures allowed to increase the mechanical strength due to the more intensive refinement of undissolved Fe-containing phase. The gradual decrease in the rolling temperature in each pass makes possible to achieve the high strength (UTS~430 MPa and YS~255 MPa) while maintaining the ductility level ~15%, that are comparable to ones obtained at some severe plastic deformation (SPD) methods.

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Deformation behavior during hot processing of the alloy of the Al-Mg system economically doped with scandium

Cited by 15 publications

References 40 publications

Modeling of casting technology of large-sized ingots from deformable aluminum alloys

Modeling of casting technology of large-sized ingots from deformable aluminum alloys

Physical Modeling of Semi-continuous Casting for Developing an Industrial Technology of Producing Ingots From New Deformable Aluminum Alloys

Effect of Process Parameters on the Microstructure and Mechanical Properties of Bars from Al-Cu-Mg Alloy Processed by Multipass Radial-Shear Rolling

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