Mathematical modeling of radial-shear rolling of the VT6 titanium alloy under conditions of formation of a globular structure

Lopatin, N. V.; Салищев, Г. А.; Галкин, С. П.

doi:10.3103/s1067821211050075

Cited by 34 publications

(28 citation statements)

References 2 publications

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“…The initial structure of AISI-321 steel in the delivery state has a coarse-grained structure with a grain size of about 40-60 μm. After deformation with total strain 11-13 (according to known FEM-models [9,14]) under favorable stress state, an ultrafine-grained microstructure was obtained in the peripheral part of the bar with a grain size (300-600 nm) comparable with the results of known studies [9,[12][13][15][16][17]. In this case, it should be noted that the grains of the peripheral part are equiaxed.…”

Section: Resultssupporting

confidence: 54%

“…Metal structure elaboration works in a way similar to longitudinal rolling in multisided grooves or compression. Structural composition elements become longer and thinner, obtaining distinctive structural streaky [9]. These peculiarities are described and illustrated in details in the works of S.P.…”

Section: Peculiarities Of Cross Rolling and Used Equipmentmentioning

confidence: 94%

“…These peculiarities are described and illustrated in details in the works of S.P. Galkin [4][5][8][9]. Based on that works, family of radial-shear rolling mills using intensive plastic deformation for solid round bar rolling were created in Moscow Institute of Steel and Alloys.…”

Section: Peculiarities Of Cross Rolling and Used Equipmentmentioning

confidence: 99%

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The effect of radial-shear rolling on microstructure and mechanical properties of stainless austenitic steel AISI-321

et al. 2018

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Improving the quality of metal products by crushing of the microstructure of material is one of the promising areas of modern metallurgy. The basic idea consists in refinement the grain structure of the material to sizes less than a micron, i.e. the obtaining of ultrafine-grained (UFG) materials, offering higher strength properties of the material under preservation or a small loss of ductility. Stainless austenitic steel AISI 321 is widely used in all the above areas as well as in chemical, vacuum and nuclear technology. For the obtaining of UFG structure in this material the method of radial-shear rolling is used. For the purpose of identifying the influence of radial-shear rolling on microstructure and mechanical properties of stainless austenitic steel AISI-321, the experiment was conducted where at the radial-shear rolling mill SVP-08 at 800 °C in several passes of the workpieces with a diameter of 30 mm rolled till a diameter of 13 mm with following cooling in water. The analysis of the microstructure of deformed samples showed the presence of equiaxed ultrafine-grained structure in the peripheral areas of the workpiece and the presence of elongated fibrous texture in the axial zone. The strength characteristics of the workpiece has increased more than 2 times, with a slight decrease of plasticity.

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Section: Resultssupporting

confidence: 54%

Section: Peculiarities Of Cross Rolling and Used Equipmentmentioning

confidence: 94%

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The effect of radial-shear rolling on microstructure and mechanical properties of stainless austenitic steel AISI-321

et al. 2018

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“…The initial billet with a diameter of 37 mm and a length of 150 mm was rolled on a mill with the compressions specified in Table 1 . Compressions were determined based on previous experience of using this mill with other materials [ 20 , 21 , 22 ]. The material of the billet is Zr-1%Nb alloy.…”

Section: Methodsmentioning

confidence: 99%

“…However, when convenient for laboratory use, both methods have two major drawbacks: a limitation in the size of the samples obtained and extremely low production technology, which exclude their industrial use. These disadvantages can be eliminated by using a method of intense deformation, such as radial-shear rolling, which also allows to obtain a UFG state, but already in long round bars with some features of the structure distribution [ 20 , 21 , 22 ]. The development of this method will become advantageous for the industrial application of products made of radiation-resistant UFG materials.…”

Section: Introductionmentioning

confidence: 99%

Using of Radial-Shear Rolling to Improve the Structure and Radiation Resistance of Zirconium-Based Alloys

et al. 2020

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An overview of the prospects for the development of nuclear technologies and the conclusion of the relevant requirements for advanced structural materials, their classification and features were performed. In order to obtain a bar with a modified radiation-resistant outer layer, an experiment of radial-shear rolling under the most stringent conditions was carried out. For the same conditions, a FEM-simulation of sequential rolling in eight passes with a total compression of 70.7% (from a diameter of 37 mm to 20 mm) was conducted. For adequate simulation results a new material database for Zr-1%Nb alloy using plastometry investigations was generated. An experimental obtaining of a gradient-modified structure with an ultrafine-grained (UFG) periphery and an elongated rolling texture in the center of the bar was performed.

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Investigation of the microstructure evolution and properties of A1050 aluminum alloy during radial-shear rolling using FEM analysis

Gamin

Akopyan

Koshmin

et al. 2020

Int J Adv Manuf Technol

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Mathematical modeling of radial-shear rolling of the VT6 titanium alloy under conditions of formation of a globular structure

Cited by 34 publications

References 2 publications

The effect of radial-shear rolling on microstructure and mechanical properties of stainless austenitic steel AISI-321

The effect of radial-shear rolling on microstructure and mechanical properties of stainless austenitic steel AISI-321

Using of Radial-Shear Rolling to Improve the Structure and Radiation Resistance of Zirconium-Based Alloys

Investigation of the microstructure evolution and properties of A1050 aluminum alloy during radial-shear rolling using FEM analysis

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