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Evolution of ω phase during heating of metastable β titanium alloy Ti–15Mo

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Abstract

Evolution of \(\omega \) phase during heating of metastable \(\beta \) titanium alloy Ti–15Mo was investigated in situ during heating by electrical resistance measurements and accompanied by transmission electron microscopy. Different heating rates were employed aiming to determine kinetics of occurring phase transformations. Sharp change of temperature dependence of electrical resistance caused by complete dissolution of \(\omega \) phase was observed at 560 \(^{\circ }\hbox {C}\) independently of heating rate. Majority of \(\omega _{\mathrm{iso}}\) particles revert back to \(\beta \) phase at 560 \(^{\circ }\hbox {C}\); therefore, they are not direct precursors of \(\alpha \) precipitation during continuous heating.

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Acknowledgements

This work was financially supported by the Czech Science Foundation under the Project 16-12598S. Partial support by the project “Nanomaterials centre for advanced applications”, Project No. CZ.02.1.01/0.0/0.0/15 003/0000485, financed by ERDF is also acknowledged.

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  1. Department of Physics of Materials, Charles University, Ke Karlovu 5, 12116, Prague, Czech Republic

    Pavel Zháňal, Petr Harcuba, Michal Hájek, Bohumil Smola, Josef Stráský, Jana Šmilauerová, Jozef Veselý & Miloš Janeček

  2. Structural and System Diagnostics, Research Centre Rez Ltd., Hlavni 130, Husinec-Rez, Czech Republic

    Pavel Zháňal

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  1. Pavel Zháňal
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Zháňal, P., Harcuba, P., Hájek, M. et al. Evolution of ω phase during heating of metastable β titanium alloy Ti–15Mo. J Mater Sci 53, 837–845 (2018). https://doi.org/10.1007/s10853-017-1519-2

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