Radial-Shear Rolling of Titanium Alloy VT-8 Bars with Controlled Structure for Small Diameter Ingots (≤200 mm)

Karpov, B. V.; Patrin, P. V.; Галкин, С. П.; Kharitonov, Eugene; Karpov, I. B.

doi:10.1007/s11015-018-0581-6

Cited by 41 publications

(10 citation statements)

References 5 publications

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“…Page 2 of 10 titanium alloy with controlled microstructure were carried out in [12,13]. Oppositely, the microstructure and properties investigations for titanium rods of small diameter (7-12 mm) are described in [14].…”

Section: Introductionmentioning

confidence: 99%

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

Gamin

Akopyan

Koshmin

et al. 2020

Archiv.Civ.Mech.Eng

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Section: Introductionmentioning

confidence: 99%

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

Gamin

Akopyan

Koshmin

et al. 2020

Archiv.Civ.Mech.Eng

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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 radial shear rolling (RSR) process is used for rolling round bars made of various metallic materials, including steel [ 17 , 18 ], titanium alloys [ 19 , 20 ], magnesium alloys [ 21 , 22 ], aluminum alloys [ 23 , 24 ] and zirconium alloys [ 25 ]. This process was developed at MISIS (National University of Science and Technology, Moscow, Russia) initially as a tube-forming process, and then adapted to produce round bars [ 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Changes in the Properties in Bimodal Mg Alloy Bars Obtained for Various Deformation Patterns in the RSR Rolling Process

et al. 2022

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The paper presents the theoretical and experimental research conducted to date regarding the possibility of obtaining round bars from AZ31 magnesium alloy with a bimodal structure rolled in the radial shear rolling process (RSR) technology. There is no analysis of the impact of the deformation path (distribution of deformation in individual passes) on the mechanical properties and the obtained bar structure. The feedstock, namely, AZ31 magnesium alloy round bars with a diameter of 30 mm, were rolled in RSR to the final diameter of 15 mm with different levels of deformation in successive passes, at a temperature of 400 °C. The bars obtained as a result of the RSR rolling process have different hardness on the cross-section as well as a characteristic gradient grain size distribution. Based on the conducted research, it can be concluded that the use of a larger number of passes with a smaller cross-section reduction will result in an improved formation of a bimodal structure consisting of a highly fragmented near-surface structure and in the half of the radius of the structure of fragmented grains at the boundaries of larger grains.

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Radial-Shear Rolling of Titanium Alloy VT-8 Bars with Controlled Structure for Small Diameter Ingots (≤200 mm)

Cited by 41 publications

References 5 publications

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

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

Changes in the Properties in Bimodal Mg Alloy Bars Obtained for Various Deformation Patterns in the RSR Rolling Process

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