The methods of orientation microscopy, x-ray diffraction phase analysis and microindentation are used to study the effect of annealing at 680°C on the structure, texture, and physical and mechanical properties of a hot-pressed tube from titanium α-alloy PT-1M. It is shown that annealing of the hot-pressed tube from alloy PT-1M in the α-range causes secondary crystallization and grain growth, which are accompanied by lowering of the hardness over cross section of the annealed tube from its external surface to the internal one. Annealing also produces reorientation of the main texture tangential prism components formed under the hot pressing. The presence of such texture components in the hot-pressed and annealed tube results in anisotropy of the hardness and of the elastic modulus in longitudinal and transverse sections of the tube.
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The study has been performed within a grant of the Russian Scientific Foundation (Project No. 18-79-10107).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 23 – 28, July, 2020.
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Illarionov, A.G., Vodolazskii, F.V., Karabanalov, M.S. et al. Effect of Annealing on the Structural and Textural State and Properties of Hot-Pressed Tube from Titanium Alloy PT-1M. Met Sci Heat Treat 62, 442–447 (2020). https://doi.org/10.1007/s11041-020-00582-5
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DOI: https://doi.org/10.1007/s11041-020-00582-5