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Influence of alloying elements on the aging of economically alloyed metastable titanium beta-alloys

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We use three commercial economically alloyed metastable titanium β-alloys (TIMETAL-LCB (wt.%): Ti–1.5Al–4.5Fe–6.8Mo, Ti–4.3Fe–7.1Cr–3Al, and Ti–1Fe–13Cr–3Al) to perform the comparative analysis of the influence of individual alloying elements on the kinetics of decomposition of the metastable β-phase quenched from the temperatures of the monophase β-region in aging. The roles played by alloying elements, such as molybdenum, iron, and chromium, are clarified. The experimental results are compared with the results of parallel computations by using the DICTRA software. We propose a new composition of economically alloyed titanium β-alloy in which Ti–1.5Al–4.5Fe–6.8Mo alloy is taken as the base and molybdenum is replaced with the equivalent amount of manganese (4%). It is shown that this alloy is promising for practical applications.

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Authors and Affiliations

  1. Kurdyumov Institute of Metal Physics, Ukrainian National Academy of Sciences, Kyiv, Ukraine

    P. E. Markovs’kyi

  2. Kansai University, Osaka, Japan

    M. Ikeda

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  1. P. E. Markovs’kyi
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  2. M. Ikeda
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Correspondence to P. E. Markovs’kyi.

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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 49, No. 1, pp. 78–84, January–February, 2013.

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Markovs’kyi, P.E., Ikeda, M. Influence of alloying elements on the aging of economically alloyed metastable titanium beta-alloys. Mater Sci 49, 85–92 (2013). https://doi.org/10.1007/s11003-013-9586-2

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  • DOI: https://doi.org/10.1007/s11003-013-9586-2

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