Skip to main content
Log in

Second Phase Precipitation on Heating Quenched Ti – 14% Mo Alloy

  • TITANIUM AND ITS ALLOYS
  • Published:
Metal Science and Heat Treatment Aims and scope

Precipitation of secondary phases in quenched alloy Ti – 14% Mo during continuous heating at a rate of 5 K/min is studied. Using quantitative methods of analytical transmission electron microscopy and x-ray structural phase analysis in situ presence within the alloy of athermal ω-phase is established, quenched from the β-range, whose lattice constants differ somewhat from the tabulated values. On heating there is precipitation of isothermal ω-phase with spacings approximating tabulated values, and at temperatures above 500°C there is formation of α-phase particles within the alloy structure. The effect of precipitated second phases particles on alloy hardness is determined.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. S. P. Belov, M. Ya. Brun, and S. G. Glazunov, Titanium and its Alloys Material Science [in Russian], Metallurgiya, Moscow (1992).

    Google Scholar 

  2. M. Sabeena, Alphy George, S. Murugesan, et al., “Microstructural characterization of transformation products of bcc in Ti – 15Mo alloy,” J. Alloys Compd., 658, 301 – 315 (2016).

  3. S. Banerjee and P. Mukhopadhyay, Phase Transformations: Examples from Titanium and Zirconium Alloys, Pergamon Materials Series, Elsevier (2007).

    Google Scholar 

  4. S. Banerjee, R. Tevari, and G. K. Dey, “Omega phase transformation — morphologies and mechanisms,” Int. J. Mater. Res. (formerly Z. Metallkd.), 97, 963 – 977 (2006).

    CAS  Google Scholar 

  5. A. G. Ilariyonov, A. A. Popov, S. V. Grib, and O. A. Elkina, “Features of ω-phase formation in titanium alloys on quenching Metalloved. Term. Obrab. Met., No. 10(664), 39 – 44 (2010).

  6. J. Šmilauerová, P. Harcuba, J. Stráský, et al., “Ordered array of ω particles in β-Ti matrix studied by small-angle x-ray scattering,” Acta Mater., 81, 71 – 82 (2014).

    Article  Google Scholar 

  7. Yu. A. Bagaryatskii and G. I. Nosiva, “Transformation of β → ω in titanium alloys on quenching — special class of martensitic transformation,” Fiz. Met. Matalloved., No. 13(3), 415 – 425 (1962).

  8. A. G. Ilarionov, A. V. Korelin, A. A. Popov, et al., “Formation of structure, phase composition, and properties of high-strength titanium alloy during isothermal thermomechanical treatment,” Fiz. Met. Matalloved., 119(8), 827 – 835 (2018).

    Google Scholar 

  9. A. A. Il’in, Phase and Structural Transformation Mechanism and Kinetics in Titanium Alloys [in Russian], Nauka, Moscow (1994).

  10. P. Zháòal, P. Harcuba, M. Hájek, et al., “Evolution of ω phase during heating of metastable β titanium alloy Ti – 15Mo,” Mater. Sci., 5, 837 – 845 (2018).

    Google Scholar 

  11. A. A. Popov, “Metastable β-phase decomposition processes in highly alloyed titanium alloys,” Fiz. Met. Matalloved., No. 53, 147 – 156 (1993).

  12. P. Zháòal, P. Harcuba, J. Stráský, et al., “Transformation pathway upon heating of metastable titanium alloy Ti – 15Mo investigated by neutron diffraction,” Materials, 12, 3570 (2019).

    Article  Google Scholar 

  13. Y. Zheng, R. E. A. Williams, D. Wang, et al., “Role of ω phase in the formation of extremely refined intragranular precipitates in metastable β-titanium alloys,” Acta Mater., 103, 850 – 858 (2016).

    Article  CAS  Google Scholar 

  14. Y. Zheng, R. E. A.Williams, and H. L. Fraser, “Characterization of previously unidentified ordered orthorhombic metastable phase in Ti – 5Al – 5Mo – 5V – 3Cr,” Scr. Mater., 113, 202 – 205 (2016).

    Article  CAS  Google Scholar 

  15. Y. Zheng, D. Banerjee, and H. L. Fraser, “A nano-scale instability in the β-phase of dilute Ti – Mo alloys,” Scr. Mater., 116, 131 – 134 (2016).

    Article  CAS  Google Scholar 

  16. Y. Zheng, S. Antonov, Q. Feng, et al., “Shuffle-induced modulated structure and heating-induced ordering in metastable β-titanium alloy, Ti – 5Al – 5Mo – 5V – 3Cr,” Scr. Mater., 176, 7 – 11 (2020).

    Article  CAS  Google Scholar 

  17. E. A. Boriseva, G. A. Bochvar,M. Ya. Brun, and S. G. Glazunov, Titanium Alloy Metallography [in Russian], Metallurgiya, Moscow (1980).

    Google Scholar 

  18. A. A. Popov, L. I. Anisimova, and V. D. Kibal’nik, “Study of metastable beta-phase decomposition during titanium alloy continuous heating,” Fiz. Met. Matalloved., 52(4), 829 – 837 (1981).

Download references

Work conducted with financial support of RF Ministry according to state assignment No. 0836-2020-0020.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to A. A. Popov.

Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 18 – 22, March, 2022.

Rights and permissions

Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Petrova, A.O., Popov, A.A., Popov, N.A. et al. Second Phase Precipitation on Heating Quenched Ti – 14% Mo Alloy. Met Sci Heat Treat 64, 151–155 (2022). https://doi.org/10.1007/s11041-022-00776-z

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11041-022-00776-z

Key words

Navigation