Numerical Simulation and Experimental Research of the Hydrostatic Extrusion Process of Pure Tungsten

  • Shengqiang Du
  • Kaijun Hong
  • Xiang Zan
  • Ping Li
  • Laima Luo
  • Yang Yu
  • Yucheng Wu
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)


A finite element model (FEM) of the hydrostatic extrusion (HE) process with pressure load model is established in this paper. On this basis, the hot hydrostatic extrusion process of sintered pure tungsten under different temperatures (T), extrusion ratios (R) and die angles (α) are simulated by introducing the Johnson-Cook constitutive relation for material flowing behavior. The simulation results show that there is a negative correlation between the extrusion pressure (P) and T, a positive correlation between P and lnR. And during the increase of the α value, the P value decreases first and then increases. The die angle corresponding to the minimum P is different under different extrusion ratio. Furthermore, a tendency of internal cracking during the process can be found when the R value is relatively small. Based on the simulation results, the experiment of hot hydrostatic extrusion of sintered pure tungsten is carried out. The microhardness, microstructure and mechanical properties of the tungsten before and after the process are investigated. The results show that after the hot hydrostatic extrusion, the grain size of the tungsten is subdivided, the hardness is improved obviously and the mechanical properties is remarkable.


Pure tungsten Hydrostatic extrusion Finite element analysis Microhardness Microstructure Mechanical properties 



This paper was supported by National Magnetic Confinement Fusion Program with Grant No. 2014GB121001 and National Natural Science Foundation of China with Grant No. 51575128.


  1. 1.
    H. Bolt, V. Barabash, G. Federici et al., Plasma facing and high heat flux materials—needs for ITER and beyond. J. Nucl. Mater. 307311, 43–52 (2002)Google Scholar
  2. 2.
    M. Merola, D. Loesser, A. Martin et al., ITER plasma-facing components. Fusion Eng. Des. 85, 2312–2322 (2010)Google Scholar
  3. 3.
    V. Philipps, Tungsten as material for plasma-facing components in fusion devices. J. Nucl. Mater. 415, S2–S9 (2011)Google Scholar
  4. 4.
    X.Y. Ding, L.M. Luo, L.M. Huang et al., Research progress in irradiation damage of tungsten and tungsten alloys for nuclear fusion reactor. Chin. J. Rare Met. 39, 1139–1147 (2015)Google Scholar
  5. 5.
    T. Hirai, F. Escourbiac, S. Carpentier-Chouchana et al., ITER tungsten divertor design development and qualification program. Fusion Eng. Des. 88, 1798–1801 (2013)Google Scholar
  6. 6.
    R.A. Pitts, S. Carpentier, F. Escourbiac et al., A full tungsten divertor for ITER: Physics issues and design status. J. Nucl. Mater. 438, S48–S56 (2013)Google Scholar
  7. 7.
    M. Rieth, S.L. Dudarev, S.M.G.D. Vicente et al., Recent progress in research on tungsten materials for nuclear fusion applications in Europe. J. Nucl. Mater. 432, 482–500 (2013)Google Scholar
  8. 8.
    F.C. Wang, Hydrostatic Extrusion (1st, National Defense Industry, Beijing, 2008)Google Scholar
  9. 9.
    Z.H. Zhang, F.C. Wang, S.K. Li et al., Deformation characteristics of the 93 W–4.9Ni–2.1Fe tungsten heavy alloy deformed by hydrostatic extrusion. Mater. Sci. Eng., A. 435–436, 632–637 (2006)Google Scholar
  10. 10.
    Z.H. Zhang, F.C. Wang, Research on the deformation strengthening mechanism of a tungsten heavy alloy by hydrostatic extrusion. Int. J. Refract. Met. Hard Mater. 19, 177–182 (2001)Google Scholar
  11. 11.
    A.H. Кoлпaшникoв, Hot Liquid Extrusion of Metal Materials (National Defense Industry, Beijing, 1988)Google Scholar
  12. 12.
    D.R. Li, Z.Y. Liu, Y. Yu et al., Numerical simulation of hot hydrostatic extrusion of W-40wt.% Cu. Mater. Sci. Eng., A. 499, 118–122 (2009)Google Scholar
  13. 13.
    B. Manafi, M. Saeidi, Deformation behavior of 93 Tungsten alloy under hydrostatic extrusion. Int. J. Adv. Manuf. Technol. 76, 28487–28492 (2014)Google Scholar
  14. 14.
    F.C. Wang, Z.H. Zhang, S.K. Li, Numerical simulation for the process of hydrostatic extrusion of 245 tungsten alloys with different die contours. Acta Armamentarii. 22, 525–528 (2001)Google Scholar
  15. 15.
    R. Kopp, G. Barton, Finite element modeling of hydrostatic extrusion of magnesium. J. Technol. Plast. 28, 1–12 (2003)Google Scholar
  16. 16.
    Q. Zhou, R.Q. Xu, Lubricating properties and development application of graphite materials. New Carbon Mater. 11–16 (1997)Google Scholar
  17. 17.
    J. Robertson, Method of and apparatus for forming metal articles, British Patent No. 19 356 (October 14, 1893), US Patent (1894) 504Google Scholar
  18. 18.
    H.L.D. Pugh, The Mechanical Behaviour of Materials Under Pressure (Elsevier, 1987), pp. 525–590Google Scholar
  19. 19.
    Z.H. Zhang, F.C. Wang, Y.M. Sun et al., Finite element analysis and experimental investigation of the hydrostatic extrusion process of deforming two-layer Cu/AI composite. J. Beijing Inst. Technol. (English Edition) 22, 544–549 (2013)Google Scholar
  20. 20.
    A. Feuerhack, C. Binotsch, A. Wolff et al., A numerical criterion for quality prediction of bimetal strands. J. Mater. Process. Tech. 214, 183–189 (2014)Google Scholar
  21. 21.
    S.Q. Du, X. Zan, P. Li et al., Comparison of hydrostatic extrusion between pressure-load and displacement-load models. Metals 7, 78 (2017)Google Scholar
  22. 22.
    Q.L. Guo, The contrast between the effect of boron nitride and that of common solid lubricant additives on sliding friction. J. G Univ. Technol. (Nat Sci Ed) 26, 41–46 (1997)Google Scholar
  23. 23.
    W. Jin, G.Q. Zhao, L. Chen et al., A comparative study of several constitutive models for powder metallurgy tungsten at elevated temperature. Mater. Des. 90, 91–100 (2016)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Shengqiang Du
    • 1
  • Kaijun Hong
    • 2
  • Xiang Zan
    • 1
    • 3
  • Ping Li
    • 1
    • 2
  • Laima Luo
    • 1
    • 3
  • Yang Yu
    • 4
  • Yucheng Wu
    • 1
    • 2
    • 3
  1. 1.School of Materials Science and EngineeringHefei University of TechnologyHefeiChina
  2. 2.Institute of Industry and Equipment TechnologyHefei University of TechnologyHefeiChina
  3. 3.National–Local Joint Engineering Research Centre of Nonferrous Metals and Processing TechnologyHefeiChina
  4. 4.School of Materials Science and EngineeringHarbin Institute of Technology—WeihaiWeihaiChina

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