Evolution of texture and tensile properties of cold-rotary swaged Ti–6Al–4V alloy seamless tubing after annealing at different temperatures

Yuan, Lihong; Wang, Wenrui; Zhang, Hao; Wei, Zengliang; Zhang, Hui; Zhang, Wangfeng

doi:10.1016/j.msea.2022.143003

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…However, the heating time of each point in the same cycle becomes shorter, so more heating time is required. From Equations ( 5)- (7), it can be seen that the acquisition and dissipation of heat determine the final temperature state of the tube blank. With the increase in temperature, the dissipation of heat accelerates.…”

Section: The Influence Of Motion On Heatingmentioning

confidence: 99%

“…The Ti6Al4V alloy is a typical α-β dual-phase alloy. The common fabrication methods for Ti6Al4V tubes include hot extrusion, cross rolling, and hot rolling [4][5][6], which are mostly used to produce large-diameter and thick-walled tube blanks [7]. Additionally, because of the narrow processing window of the Ti6Al4V alloy [8], temperature control is challenging, and large-scale production such as steel has not been achieved.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Study of Ti6Al4V Alloy Tube Heated by Super-Frequency Induction Heating

Liu

Han

et al. 2023

Materials

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Ti6Al4V alloys have a narrow processing window, which complicates temperature control, especially during large-scale production. Therefore, a numerical simulation and experimental study on the ultrasonic induction heating process of a Ti6Al4V titanium alloy tube were conducted to obtain stable heating. The electromagnetic and thermal fields in the process of ultrasonic frequency induction heating were calculated. The effects of the current frequency and current value on the thermal and current fields were numerically analyzed. The increase in current frequency enhances the skin and edge effects, but heat permeability was achieved in the super audio frequency range, and the temperature difference between the interior and exterior of the tube was less than 1%. An increase in the applied current value and current frequency caused an increase in the tube’s temperature, but the influence of current was more prominent. Therefore, the influence of stepwise feeding, reciprocating motion, and stepwise feeding superimposed motion on the heating temperature field of the tube blank was evaluated. The coil reciprocating with the roll can maintain the temperature of the tube within the target temperature range during the deformation stage. The simulation results were validated experimentally, which demonstrated good agreement between the results. The numerical simulation method can be used to monitor the temperature distribution of Ti6Al4V alloy tubes during the super-frequency induction heating process. This is an economical and effective tool for predicting the induction heating process of Ti6Al4V alloy tubes. Moreover, online induction heating in the form of reciprocating motion is a feasible strategy for processing Ti6Al4V alloy tubes.

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Section: The Influence Of Motion On Heatingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Study of Ti6Al4V Alloy Tube Heated by Super-Frequency Induction Heating

Liu

Han

et al. 2023

Materials

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Development of Low Anisotropic Commercially Pure Titanium Foils by Asymmetric Rolling and Annealing

Guo,

Wang,

Kong

et al. 2024

Adv Eng Mater

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This work studies the evolution of microstructure, texture, and anisotropy of pure titanium foils by symmetric rolling (SR) and asymmetric rolling (ASR) and subsequent annealing. The as‐received material shows equiaxed alpha grains and strong transverse texture (S‐T texture), which leads to severe anisotropy. The index of plane anisotropy (IPA) of yield stress (YS) and ultimate tensile stress (UTS) of the as‐received material is 15.2% and 7.5%, respectively. With the increase of deformation, the S‐T texture is mainly transformed into a mixed texture of transverse texture (T texture) and rolling direction texture (R texture), which balances the start‐up of the slip system when loading in the rolling direction (RD) and transverse direction (TD), so that the mechanical stress along RD and TD are close to each other and the anisotropy is improved. Especially for the samples prepared by ASR and annealing, the appearance of more R texture or basal texture (B texture) at the same deformation makes them show lower anisotropy. Therefore, after the same annealing treatment, the IPA of titanium foil with a thickness of 0.2 mm prepared by ASR is the smallest, which is 6.6% and 0.03%, respectively, while the IPA prepared by SR is 10.5% and 2.5%.This article is protected by copyright. All rights reserved.

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Effect of Heterogeneous Deformation on Microstructure and Microtexture Evolution of Ti‐6Al‐4V Alloy during Multidirectional Isothermal Forging

Zhang,

Huang,

et al. 2024

Adv Eng Mater

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The heterogeneous deformation of Ti‐6Al‐4V alloy during multidirectional isothermal forging and its effect on microstructure, microtexture, and related mechanical properties are investigated here. It is found that lowering the deformation temperature, combined with increasing the number of forging times, accelerates the grain refinement and recrystallization process in the as‐received billet, especially in the surface section rather than the inner of the billet. Finally, a heterogeneous lamellar structure is formed after annealing the billet with a fourth step of forging. The heterogeneous lamella structure enables a better synergy of strength and ductility when compared to its equiaxed counterpart, achieving a high tensile strength of 1194 MPa and an elongation of 13.1%. During the deformation, a high proportion of back stress to total flow stress, ranging from 64–67%, denotes that back stress strengthening is one of the main reasons for the better synergy of strength and ductility. This study guides a low‐cost and convenient way for the regulation of microstructure and mechanical properties of titanium alloy with good performance.

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Evolution of texture and tensile properties of cold-rotary swaged Ti–6Al–4V alloy seamless tubing after annealing at different temperatures

Cited by 8 publications

References 23 publications

Numerical Study of Ti6Al4V Alloy Tube Heated by Super-Frequency Induction Heating

Numerical Study of Ti6Al4V Alloy Tube Heated by Super-Frequency Induction Heating

Development of Low Anisotropic Commercially Pure Titanium Foils by Asymmetric Rolling and Annealing

Effect of Heterogeneous Deformation on Microstructure and Microtexture Evolution of Ti‐6Al‐4V Alloy during Multidirectional Isothermal Forging

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