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Powder Metallurgy and Metal Ceramics

, Volume 56, Issue 5–6, pp 273–282 | Cite as

Assessment of Gas Saturation of Titanium Alloys Synthesized From Powders Using Twist Extrusion

Article

The gas saturation of semi-finished titanium alloys produced from metal powder using the technique comprising cold pressing, vacuum sintering, and subsequent severe plastic deformation by twist extrusion is analyzed. The main sources are considered and the quantitative analysis of pollution of sintered alloys with nitrogen and oxygen impurities contained in the powder particles on their surface and in the pore spaces of the billet is conducted. It is established that the quality of the starting titanium powder has the biggest impact on the pollution of alloys. It is shown that the use of titanium powders with low content of impurities allows keeping the oxygen and nitrogen content of synthesized semi-finished products at the level meeting the requirements of the reference documentation for VT1-0 titanium and heat-resistant titanium alloys. It is shown that the share of impurities entering the synthesized alloy from (i) the oxides on the powder particle surface and (ii) the air filling the closed pore space of the billet is insignificant.

Keywords

powder metallurgy titanium powder severe plastic deformation twist extrusion impurity oxygen hydrogen nitrogen titanium oxide 

References

  1. 1.
    V. M. Ustinov, Yu. G. Olesov, L. N. Antipin, and V. A. Drozdenko, Powder Metallurgy of Titanium [in Russian], Metallurgiya, Moscow (1973), p. 248.Google Scholar
  2. 2.
    S. G. Glazunov, Powder Metallurgy of Titanium Alloys [in Russian], Metallurgiya, Moscow (1989), p. 134.Google Scholar
  3. 3.
    D. V. Pavlenko and A. V. Ovchinnikov, “Technical and economic aspects of flow charts for producing titanium alloy billets for GTE blades,” Vest. Dvigatelestr., No. 1, 98–103 (2014).Google Scholar
  4. 4.
    C. Haase, R. Lapovok, H. P. Ng, and Y. Estrin, “Production of Ti–6 A1–4 V billet through compaction of blended elemental powders by equal-channel angular pressing,” Mater. Sci. Eng. A, 550, 263–272 (2012).CrossRefGoogle Scholar
  5. 5.
    R. Lapovok, D. Tomus, and B. C. Muddle, “Low-temperature compaction of Ti–6 A1–4 V powder using channel angular extrusion with back pressure,” Mater. Sci. Eng. A, 490, 171–180 (2008).CrossRefGoogle Scholar
  6. 6.
    P. Luo, H. Xie, M. Paladugu, et al., “Recycling of titanium machining chips by severe plastic deformation consolidation,” Mater. Sci., 45, 4000–4612 (2010).Google Scholar
  7. 7.
    A. V. Altukhov, A. F. Tarasov, and A. V. Perig, “Systemizing processes of severe plastic deformation for the formation of ultra-fine grain and nanocrystalline structures in solid billets,” Pisma Mater., 2, 54–59 (2012).Google Scholar
  8. 8.
    R. Z. Valiev, Y. Estrin, Z. Horita, et al., “Producing bulk ultrafine-grained materials by severe plastic deformation: Ten years later,” J. Minerals, Metals Mater. Soc., 68, No. 4, 1216–1226 (2016).CrossRefGoogle Scholar
  9. 9.
    Y. Beygelzimer, Y. Estrin, and R. Kulagin, “Synthesis of hybrid materials by severe plastic deformation: A new paradigm of SPD processing,” Adv. Eng. Mater., 17, No. 12, 1853–1861 (2015).CrossRefGoogle Scholar
  10. 10.
    F. L. Leokha, and S. N. Ratiev, “Modern techniques for producing oxygen-alloyed titanium alloys,” Metalurgiya, No. 1(14) –2(15), 85–94 (2012).Google Scholar
  11. 11.
    G. G. Belousov, A. D. Nikitin, and A. A. Shanyavskii, “Model of fatigue fracture during operating of titanium disk of TA12-60 engine fan,” Nauch. Vest. Mosk. Gos. Tekh. Univ. Grazhd, Aviats., No. 187, 103–107 (2013)Google Scholar
  12. 12.
    Y. Beygelzimer, “Vortices and mixing in metals during severe plastic deformation,” Mater. Sci. Forum, 683, 213–224 (2011).CrossRefGoogle Scholar
  13. 13.
    D. V. Pavlenko and Y. Beygelzimer, “Vortices in noncompact blanks during twist extrusion,” Powder Metall. Met. Ceram., 54, Nos. 9–10, 517–524 (2015).Google Scholar
  14. 14.
    X. Wang, M. Hu, Z. Zhu, et al., “Influence of twist extrusion process on consolidation of aluminum powder in tubes by equal channel angular pressing,” Nonferrous Met. Soc. China, No. 25, 2122–2129 (2015).Google Scholar
  15. 15.
    D. V. Pavlenko and A. V. Ovchinnikov, “Effect of deformation by the method of screw extrusion on the structure and properties of VT1-0 alloy in different states,” Mater. Sci., 51, No. 1, 52–60 (2015).CrossRefGoogle Scholar
  16. 16.
    O. M. Shapovalova and E. P. Babenko, “Effect of heating temperature on gas saturation of Ti-powders,” Nov. Mater. Tekhnol. Metall. Mashinostr., No. 2, 93–96 (2008).Google Scholar
  17. 17.
    O. M. Shapovalova and E. P. Babenko, “Features of obtaining sintered products from titanium powders produced by electrolysis,” Vest. Khar. Nats. Avtom. Dor. Univ., No. 33, 33–36 (2006).Google Scholar
  18. 18.
    P. I. Loboda, E. G. Byba, M. O. Sysoev, and O. S. Hutsu, “Structure and properties of titanium produced by sintering TiH2 powders,” Fiz. Khim. Tverd. Tila, 12, No. 2, 465–469 (2011).Google Scholar
  19. 19.
    O. M. Ivasishin, D. G. Savvakin, M. M. Gumenyak, and O. B. Bondarchuk, “Role of surface pollution in titanium PM,” Eng. Mater., 520, 121–132 (2012).Google Scholar
  20. 20.
    N. P. Nechaev, Yu. P. Kudryavskii, and S. V. Mushkov, “Physical and chemical treatment of titanium powders against pollutants,” Usp. Sovr. Estestvozn., No. 8, 45–46 (2005).Google Scholar
  21. 21.
    O. M. Shapovalova and E. P. Babenko, “Study of structure and properties of crystals of refined high-purity titanium during heating,” Vest. Dvigatelestr., No.1, 134–138 (2009).Google Scholar
  22. 22.
    S. S. Kiparisov, Powder Metallurgy [in Russian], Metallurgiya, Moscow (1980), p. 496.Google Scholar
  23. 23.
    S. Axelsson, Surface Characterization of Titanium Powders with X-ray Photoelectron Spectroscopy, Path: http://publications.lib.chalmers.se/records/fulltext/164534.pdf.
  24. 24.
    N. P. Lyakishev (Ed.), State Diagrams of Binary Metallic Systems: Handbook [in Russian], Vol. 3, Book 1, Mashinostroenie, Moscow (2001), p. 872.Google Scholar
  25. 25.
    I. Vaquila, I. Vergara, M. C. G. Jr Passeggi, et al., “Chemical reactions at surfaces: titanium oxidation,” Surf. Coat. Technol., 122, No. 1, 67–71 (1999).CrossRefGoogle Scholar
  26. 26.
    O. A. Snizhko and V. V. Pashinskii, “Features of structurization of Ti–O alloys produced by chamber electroslag remelting,” Fiz. Tekh. Vys. Davl., 21, No. 4, 139–147 (2011).Google Scholar
  27. 27.
    A. V. Ovchinnikov, “Effect of Alloying Spongy Titanium with Oxygen on the Structure and Mechanical Properties of Cast Titanium,” in: Proceedings of International Conference “Ti-2007 in CIS” (2007), pp. 170–173.Google Scholar
  28. 28.
    A. D. Ryabtsev, S. I. Davydov, A. A. Troyanskii, et al., “Producing high-strength titanium by alloying with oxygen during chamber electroslag remelting,” Elektroshlak. Tekhnol., No. 3, 3–6 (2007).Google Scholar
  29. 29.
    D. V. Pavlenko, “Techniques for compacting sintered titanium billets,” Vest. Dvigatelestr., No. 1, 87–93 (2015).Google Scholar
  30. 30.
    D. V. Pavlenko, “Material science aspects of resource-recovery technologies for producing titanium semifinished products,” Tekhnol. Sistemy, No. 4 (65), 21–29 (2013).Google Scholar
  31. 31.
    J. Slotwinski, Properties of Metal Powders for Additive Manufacturing: A Review of the State of the Art of Metal Powder Property Testing, Path:  https://doi.org/10.6028/NIST.IR.7873.
  32. 32.
    A. P. Karnaukhov, Adsorption. Texture of Dispersed and Porous Materials [in Russian], Nauka, SO RAN, Novosibirsk (1999), p. 469.Google Scholar
  33. 33.
    V. A. Boguslaev, V. K. Yatsenko, and V. F. Pritchenko, Engineering Support and Prediction of Carrying Capacity of GTE Details [in Russian], JSC Motor Sich, Zaporizhzhya (2006), p. 336.Google Scholar
  34. 34.
    D. V. Pavlenko, “Effect of titanium powder parameters on the strength of sintered semi-finished products,” Novi Mater. Tekhnol. Metall. Mashinobud., No. 2, 87–92 (2014).Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.Zaporizhzhya National Technical UniversityZaporizhzhyaUkraine

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