Development of microstructural inhomogeneity in multi-pass flow forming of TA15 alloy cylindrical parts

Wang, Xianxian; Gao, Pengfei; Zhan, Mei; Yang, Ke; Dong, Yunda; Li, Yukun

doi:10.1016/j.cja.2019.08.021

Cited by 20 publications

(2 citation statements)

References 31 publications

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“…In addition, many scholars have studied dynamic recrystallization at high temperatures [21][22][23]. Wang et al [24] investigated the thermal deformation mechanism of laserwelded TA15 joints through high-temperature tensile tests ranging from 800 • C to 900 • C, and found that at 900 • C and a strain rate of 0.001 s −1 , the maximum elongation was 292%.…”

Section: Introductionmentioning

confidence: 99%

Strength and Toughness of Hot-Rolled TA15 Aviation Titanium Alloy after Heat Treatment

Pan

Liu

et al. 2023

Aerospace

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To investigate the impact of various heat treatments on the strength and toughness of TA15 aviation titanium alloys, five different heat treatment methods were employed in the temperature range of 810–995 °C. The microstructure of the alloy was examined using a scanning electron microscope (SEM) and X-ray diffraction (XRD), and its mechanical properties were analyzed through tensile, hardness, impact, and bending tests. The findings indicate that increasing the annealing temperature results in an increase in the phase boundary and secondary α phase, while the volume fraction of the primary α phase decreases, leading to a rise in hardness and a decrease in elongation. The tensile strength of heat-treated samples at 810 °C was notably improved, displaying high ductility at this annealing temperature. Heat treatment (810 °C/2 h/WQ) produced the highest tensile properties (ultimate tensile strength, yield strength, and elongation of 987 MPa, 886 MPa, and 17.78%, respectively). Higher heat treatment temperatures were found to enhance hardness but decrease the tensile properties, bending strength, and impact toughness. The triple heat treatment (810 °C/1 h/AC + 810 °C/1 h/AC + 810 °C/1 h/AC) resulted in the highest hardness of 601.3 MPa. These results demonstrate that various heat treatments have a substantial impact on the strength and toughness of forged TA15 titanium alloys.

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Section: Introductionmentioning

confidence: 99%

Strength and Toughness of Hot-Rolled TA15 Aviation Titanium Alloy after Heat Treatment

Pan

Liu

et al. 2023

Aerospace

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“…Many scholars have investigated conventional spinning, flow forming, and shear spinning (Wang and Long, 2011;Childerhouse and Long, 2019;Wang et al, 2020;Huang et al, 2021). However very few researchers studied the DRCS process.…”

Section: Introductionmentioning

confidence: 99%

Finite-Element Modelling of Double-Roller Clamping Spinning of Wind Concentrator

Qu¹,

Fan

et al. 2022

Front. Energy Res.

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In order to improve the unit-power of a wind-driven generator, a wind concentrator with complex shape is installed in front of the impeller, which makes the airflow integrated and accelerated. It is important to manufacture the wind concentrator with high precision. The double-roller clamping spinning (DRCS) is a dieless, flexible spinning process that is very suitable for forming a wind concentrator with complex shape. The profile of a wind concentrator is divided into two parts: the contraction section and the expanding section. The process routes of both the contraction section and the expanding section are determined, and roller path equations are derived. Then the finite element (FE) analysis model that can describe the plastic deformation behavior of the DRCS forming for a wind concentrator is established, and the DRCS process of the flange is simulated. Furthermore, the wall-thickness distribution on the expanding section during the forming process is obtained. Finally, the reliability of the FE model is verified using the experimental results.

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Anodic dissolution mechanism of TA15 titanium alloy during counter-rotating electrochemical machining

Cao

Wang

Cui

et al. 2022

Sci. China Technol. Sci.

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Development of microstructural inhomogeneity in multi-pass flow forming of TA15 alloy cylindrical parts

Cited by 20 publications

References 31 publications

Strength and Toughness of Hot-Rolled TA15 Aviation Titanium Alloy after Heat Treatment

Strength and Toughness of Hot-Rolled TA15 Aviation Titanium Alloy after Heat Treatment

Finite-Element Modelling of Double-Roller Clamping Spinning of Wind Concentrator

Anodic dissolution mechanism of TA15 titanium alloy during counter-rotating electrochemical machining

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