Preparation of TiAl Based Metallic Fibers

  • Yongchuan Yu
  • Shuling Zhang
  • Weiye Chen
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


The microstructure and outward of Ti-44Al-8Nb fibers prepared by melt spinning method were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and analyzed by line scan energy spectrum and energy dispersive X-ray detector. The fibers were manufactured at two rotation speeds. The outward of the fibers with Rayleigh-wave was defaulted when the rotation speed was 2000 r/min. But when the rotational speed up to 2600 r/min, the fibers became a ribbon shape. The fiber quality of the fibers prepared with these two rotation speeds were unsatisfactory. The microstructure was mainly composed of fine α2 phase, γ phase dendritic crystal and a second phase which was confirmed to be Ti5Si3. The above analysis results showed that the reaction among Ti-44Al-8Nb alloy, quartz tube, and BN crucible occurred. The feasibility of zirconia crucible and zirconia tube were speculated. In all respects, the above work laid the foundation for the latter part of the preparation process which also needs to be optimized.


Microstructure Rapid-solidification Melt extracted 


  1. 1.
    H. Peng, C.K. Hong, R.Y. Jie, Solidification microstructure characteristics of Ti–44Al–4Nb–2Cr–0.1B alloy under various cooling rates during mushy zone. J Rare Metals 35, 35–41 (2016)CrossRefGoogle Scholar
  2. 2.
    Q. Li, Z.W. Chen, Q. Luo, Experimental investigation and thermodynamic calculation of the Al-rich corner in the ternary Al-Ti-V system. J. Mat. Design 115, 339–347 (2017)CrossRefGoogle Scholar
  3. 3.
    Z.C. Xie, T.H. Gao, X.T. Guo et al., Evolution of icosahedral clusters during the rapid solidification of liquid TiAl alloy. J. Physica B: Condens. Matter. 440, 130–137 (2014)CrossRefGoogle Scholar
  4. 4.
    S. Bolz, M. Oehring, J. Lindemann et al., Microstructure and mechanical properties of a forged β-solidifying γ TiAl alloy in different heat treatment conditions. J. Intermetallics 58, 71–83 (2015)CrossRefGoogle Scholar
  5. 5.
    R.M. Imayev, V.M. Imayev, M. Oehring et al., Alloy design concepts for refined gamma titanium aluminide based alloys. J. Intermetallics. 15, 451–460 (2007)CrossRefGoogle Scholar
  6. 6.
    F.C. Ma, S.Y. Lu, P. Liu et al., Microstructure and mechanical properties variation of TiB/Ti matrix composite by thermo-mechanical processing in beta phase field. J. J. Alloys Compd. 695, 1515–1522 (2017)CrossRefGoogle Scholar
  7. 7.
    H.Z. Niu, Y.F. Chen, Y.S. Zhang et al., Phase transformation and dynamic recrystallization behavior of a β-solidifying γ-TiAl alloy and its wrought microstructure control. J. Mat. Design 90, 196–203 (2016)CrossRefGoogle Scholar
  8. 8.
    J. Zhu, J.B. Chen, T. Liu et al., High strength Mg94Zn2.4Y3.6 alloy with long period stacking ordered structure prepared by near-rapid solidification technology. J Mat. Sci. Eng. A. 679, 476–483 (2017)CrossRefGoogle Scholar
  9. 9.
    Z.G. Liu, L.H. Chai, Y.Y. Chen, Effect of cooling rate and Y element on the microstructure of rapidly solidified TiAl alloys. J. J. Alloys Compd. 504, 491–495 (2010)CrossRefGoogle Scholar
  10. 10.
    H.W. Wang, D.D. Zhu, C.M. Zou et al., Microstructure and nanohardness of Ti-48%Al alloy prepared by rapid solidification under different cooling rates. J. Trans. Nonferrous Met. Soc. China. 21, 328–332 (2011)CrossRefGoogle Scholar
  11. 11.
    Y.Y. Chen, B.H. Li, F.T. Kong, Microstructural refinement and mechanical properties of Y-bearing TiAl alloys. J. J. Alloys Compd. 457, 265–269 (2008)CrossRefGoogle Scholar
  12. 12.
    S.Z. Zhang, S.L. Zhang, Y.F. Chen et al., Microstructural characterization of melt extracted high-Nb-containing TiAl-based fiber. J. Materials. 10, 195–203 (2017)CrossRefGoogle Scholar
  13. 13.
    L.H. Chai., Effect of rare earth yttrium on microstructure of rapidly solidified titanium aluminum based alloys, in D. Harbin. School of materials science and engineering (Harbin institute of technology, 2006)Google Scholar
  14. 14.
    F.T. Kong, Y.Y. Chen, J. Tian et al., Effect of yttrium on microstructure and mechanical properties of Ti-43Al-9V alloy. J. Chin. J. Rare Met. 28, 75–77 (2004)Google Scholar
  15. 15.
    D.D. Zhu, D. Duo, C.Y. Ni et al., Effect of wheel speed on the microstructure and nanohardness of rapidly solidified Ti–48Al–2Cr alloy. J. Mat. Charact. 99, 243–247 (2015)CrossRefGoogle Scholar
  16. 16.
    J.C. Han, S.L. Xiao, J. Tian et al., Grain refinement by trace TiB2 addition in conventional cast TiAl-based alloy. J. Mat. Charact. 106, 112–122 (2015)CrossRefGoogle Scholar
  17. 17.
    B. Chen, H.P. Xiong, W. Mao et al., Joining of SiO2f/SiO2 composite to TC4, Ti3Al and TiAl. J. Mat. Eng. 2, 41–44 (2012)Google Scholar
  18. 18.
    Z.W. Yang, L.X. Zhang, W. Ren et al., Interfacial microstructure and strengthening mechanism of BN-doped metal brazed Ti/SiO2-BN joints. J. J. Eur. Ceram. Soc. 33, 759–768 (2013)CrossRefGoogle Scholar
  19. 19.
    Z.L. Li, W. Liang, S.J. Teng et al., Effect of SiO2 coating on high temperature oxidation resistance of TiAl-based alloy. J. Trans. Mat. Heat Treat. 29, 124–128 (2008)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.School of Mechanical EngineeringNingxia UniversityNingxia YinchuanChina
  2. 2.School of Materials Science and EngineeringBeifang University of NationalitiesNingxia YinchuanChina

Personalised recommendations