Numerical Simulation of the Hot Isostatic Pressing Densification Behavior of Ti6Al4V Powder for a Thin-Walled Tubular Component with Non-Axisymmetric Inner Ribs

被引：0
作者：
Jiang, Yanqing [1 ,2 ]
Geng, Lin [1 ]
Zhang, Guofeng [2 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150006, Peoples R China
[2] Aerosp Long March Arimt Technol Co Ltd, Tianjin 300462, Peoples R China
来源：
METALS | 2025年 / 15卷 / 02期
关键词：
hot isostatic pressing; densification behavior; Ti6Al4V alloy; thin-walled tubular components; non-axisymmetric inner ribs; MECHANICAL-PROPERTIES; PLASTICITY THEORY; TI-6AL-4V ALLOY; MICROSTRUCTURE; TECHNOLOGY; METALS;
D O I：
10.3390/met15020173
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hot isostatic pressing (HIP) technology is an efficient near-net-shape forming method to prepare complex-shaped structural components. However, for non-axisymmetric components with a complex shape, the powder flow and densification behaviors during HIP are still not clear, leading to a need for lots of experiments to optimize the process parameters. In the current work, a typical aerospace thin-walled tubular component with non-axisymmetric inner ribs was selected as the research object, and its instantaneous powder flow and relative density during the whole HIP process were investigated by a numerical simulation method, focusing on the influence of HIP process conditions on powder densification. The simulation results indicate that the upper end of the Ti6Al4V thin-walled tubular part is preferentially densified, and the lowest densification is observed at the inner rib of the cylinder wall. Moreover, the effect on densification of each HIP condition, including sintering temperature (900-970 degrees C), pressure (120-180 MPa), and holding time (3-4 h), was evaluated separately. The HIP sintering temperature contributes the most to the improvement of densification, followed by the pressure, while the holding time contributes the least. Investigating HIP densification behavior is beneficial to the structural and process optimization of metal near-net-shape forming applications.
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页数：16
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共 36 条
  • [1] Bunck M., Stoyanov T., Schievenbusch J., Michels H., Gussfeld A., Titanium aluminide casting technology development, JOM, 69, pp. 2565-2570, (2017)
  • [2] Williams J.C., Boyer R.R., Opportunities and issues in the application of titanium alloys for aerospace components, Metals, 10, (2020)
  • [3] Zhao Q., Sun Q., Xin S., Chen Y., Wu C., Wang H., Xu J., Wan M., Zeng W., Zhao Y., High-strength titanium alloys for aerospace engineering applications: A review on melting-forging process, Mater. Sci. Eng. A, 845, (2022)
  • [4] Luan J.H., Jiao Z.B., Liu W.H., Lu Z., Zhao W., Liu C., Compositional and microstructural optimization and mechanical-property enhancement of cast Ti alloys based on Ti-6Al-4V alloy, Mater. Sci. Eng. A, 704, pp. 91-101, (2017)
  • [5] Rielli V.V., Amigo-Borras V., Contieri R.J., Microstructural evolution and mechanical properties of in-situ as-cast beta titanium matrix composites, J. Alloys Compd, 778, pp. 186-196, (2019)
  • [6] Liu J., Chen G., Zhao L., Yu Z., Jia X., Research status and development trend of cutting surface integrity of aerospace alloy materials, Int. J. Adv. Manuf. Technol, 127, pp. 45-63, (2023)
  • [7] Nabhani F., Machining of aerospace titanium alloys, Robot. Comput.-Integr. Manuf, 17, pp. 99-106, (2001)
  • [8] Atkinson H.V., Davies S., Fundamental aspects of hot isostatic pressing: An overview, Metall. Mater. Trans. A, 31, pp. 2981-3000, (2000)
  • [9] Rao G., Sankaranarayana M., Balasubramaniam S., Hot isostatic pressing technology for defence and space applications, Def. Sci. J, 62, pp. 73-80, (2012)
  • [10] You D., Wang Y., Yang C., Li F., Comparative analysis of the hot-isostatic-pressing densification behavior of atomized and milled Ti6Al4V powders, J. Mater. Res. Technol, 9, pp. 3091-3108, (2020)
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