Modification of the Structure of Low-Carbon Pipe Steel by Helical Rolling, and the Increase in Its Strength and Cold Resistance

Derevyagina, L. S.; Гордиенко, А. И.; Pochivalov, Yu. I.; Смирнова, А. С.

doi:10.1134/s0031918x18010076

Cited by 24 publications

(9 citation statements)

References 13 publications

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“…This means that the feed angle of rolls was 18 degrees. Similar results were obtained for the microstructure sections in the billet’s longitudinal section close to the billet’s surface [ 22 ]. It was observed in [ 19 , 23 ] that grains are oriented with some angle in the areas near the billet’s surface in the cross-section.…”

Section: Introductionsupporting

confidence: 84%

Creation of 3D Model of Stainless-Steel Billet’s Grain after Three-High Screw Rolling

et al. 2022

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The three-high screw rolling of AISI 321 billet from 60 mm to 52 mm diameter was performed using an MISIS-100T mill. When screw rolling was carried out, a set of sections were made in the billet’s cross-section at the stationary stage of screw rolling. SolidWorks was applied to make the 3D model of the rolled billet’s grain using microstructure images. The same technique was applied for the creation of the 3D model of a nondeformed billet’s grain. A comparison of the 3D models’ shape and dimensions before and after screw rolling was made. It was established that, compared to the nondeformed grain model, the screw rolled billet’s grain model was twisted and elongated along some angle in the rolling direction. This angle’s value is commensurable to the roll’s feed angle during the experimental rolling. Anisotropy indexes of before and after rolling grain models were estimated and compared to the anisotropy indexes obtained via the sections’ analysis in earlier research. Difference did not exceed 5%.

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Section: Introductionsupporting

confidence: 84%

Creation of 3D Model of Stainless-Steel Billet’s Grain after Three-High Screw Rolling

et al. 2022

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“…Unique features of the metal flow and the stress-strain state (SSS) during RSR change billet metal properties and the grain structure. The intensive shear strain created by three-roll RSR mini-mills significantly decreases the grain size of different materials such as steels [7], titanium alloys [8,9,10,11], magnesium and its alloys [4,5,6], copper and copper alloys [12,13,14], aluminum alloys [15]. The fine-grain structure increases the range of round bar properties [2]; above all, plasticity and associated properties [5,8].…”

Section: Introductionmentioning

confidence: 99%

Forming Features and Properties of Titanium Alloy Billets After Radial-Shear Rolling

Skripalenko

Галкин

Karpov³

et al. 2019

Materials

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Radial-shear rolling (RSR) of titanium alloy billets was realized in a three-high rolling mill. Experimental rolling was simulated using DEFORM software. The purpose was to reveal how stress-strain state parameters, grain structure and hardness vary along the billet’s radius in the stationary stage of the RSR process. It was also the goal to establish a relation between stress state parameters, hardness and grain structure. Changes in the accumulated strain and the stress triaxiality were established by computer simulation. Hardness and grain size changes were obtained after experimental rolling. The novelty aspect is that both computer simulation and experimental rolling showed that there is a ring-shape area with lowered strength in the billet’s cross-section. The radius of the ring-shape area was predicted as a result of the research.

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“…The most popular methods that implement these conditions are equal channel angular pressing in 6-8 cycles or more (ECAP) [11] and high pressure torsion (HPT), as the evolution of the Bridgman anvil [1,[7][8][18][19][20].…”

Section: Features Of Ultrafine-grained and Nanostructured Materials A...mentioning

confidence: 99%

“…However, when convenient for laboratory use, both methods have two major drawbacks: a limitation in the size of the resulting samples and extremely low production technology, which practically exclude their industrial use. These disadvantages can be eliminated by using a radial-shear rolling method, which also allows to obtain a UFG state, but already in long round bars with some features of the structure distribution [18][19][20]. The development of this method will make it possible to take a step towards the industrial application of products made of radiation-resistant UFG materials.…”

Section: Features Of Ultrafine-grained and Nanostructured Materials A...mentioning

confidence: 99%

OBTAINING OF UFG STRUCTURE OF Zr-1% Nb ALLOY BY RADIAL-SHEAR ROLLING

Arbuz

Kawałek

Ozhmegov

et al. 2020

METAL Conference Proeedings

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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 described. In order to obtain a bar with a modified radiation-resistant outer layer, an experiment on radial-shear rolling of the Zr-1% Nb alloy in conditions favorable for the UFG structure formation was conducted. In the process of radial-shear rolling of round bars along the route 37 mm → 20 mm in diameters with a total deformation of  ≈ 70 %, a microstructure of submicron size was obtained. The nature of the microstructure is equiaxed with mainly high-angle boundaries and large crystallographic misorientation of the grains that is the most promising from the point of view of radiation resistance.

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Modification of the Structure of Low-Carbon Pipe Steel by Helical Rolling, and the Increase in Its Strength and Cold Resistance

Cited by 24 publications

References 13 publications

Creation of 3D Model of Stainless-Steel Billet’s Grain after Three-High Screw Rolling

Creation of 3D Model of Stainless-Steel Billet’s Grain after Three-High Screw Rolling

Forming Features and Properties of Titanium Alloy Billets After Radial-Shear Rolling

OBTAINING OF UFG STRUCTURE OF Zr-1% Nb ALLOY BY RADIAL-SHEAR ROLLING

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