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Influence of heat treatment parameters on the structure and mechanical properties of a titanium VT6 alloy in the submicrocrystalline state

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Inorganic Materials: Applied Research Aims and scope

Abstract

The effect of additional annealing on the structure and mechanical properties of the titanium VT6 alloy in the submicrocrystalline state is studied. It is shown that the annealing at 833 K for 20 min does not significantly affect the mechanically properties of the alloy at room temperature. However, this annealing severely deteriorates the superplastic properties of the alloy. Annealing at 873 K for 5 min results in a sharp decrease in the strength properties of the alloy at room temperature (by about 20%). Nevertheless, the superplastic properties of the alloy after this annealing are the highest ones among those considered in this work. It is assumed that the state of grain boundaries plays the decisive role in the development of the superplastic flow of the VT6 alloy after three-dimensional pressing and subsequent annealing.

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Authors and Affiliations

  1. Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055, Russia

    I. V. Ratochka & O. N. Lykova

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  1. I. V. Ratochka
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  2. O. N. Lykova
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Correspondence to I. V. Ratochka.

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Original Russian Text © I.V. Ratochka, O.N. Lykova, 2016, published in Perspektivnye Materialy, 2016, No. 12, pp. 65–71.

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Ratochka, I.V., Lykova, O.N. Influence of heat treatment parameters on the structure and mechanical properties of a titanium VT6 alloy in the submicrocrystalline state. Inorg. Mater. Appl. Res. 8, 348–352 (2017). https://doi.org/10.1134/S2075113317020204

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  • DOI: https://doi.org/10.1134/S2075113317020204

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