Abstract
The effect of reversible hydrogen alloying on the structure, the hot plastic deformation resistance, and the crystallographic texture of a Ti–9.1 Al–2.2 Mo–1.6 Zr alloy (wt %) is studied. The dependences of the type and parameters of structure on the introduced hydrogen concentration and the vacuum annealing conditions are presented. A decrease in the yield strength of the alloy containing 0.15–0.6 wt % hydrogen by 140–210 MPa and a decrease in its flow stresses during plastic deformation are detected. The type and quantitative characteristics of the α-phase texture after hot isothermal upsetting and vacuum annealing of alloys with various hydrogen contents are determined.
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Notes
Either the α phase containing ordered lattice microvolumes or the α2 phase with a variable degree of ordering less than 1.
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Funding
This work was carried out in terms of the basic part of a state assignment to universities Theoretical and Experimental Studies in the Field of Production and Treatment of Advanced Metallic and Composite Materials Based on Aluminum and Titanium Alloys (project no. FSFF-2020-0017) using the equipment of the resource center for collective use Aerospace Materials and Technologies, Moscow Aviation Institute.
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Translated by K. Shakhlevich
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Mamonov, A.M., Agarkova, E.O., Neiman, A.P. et al. Effect of Hydrogen on the Structure, the Hot Plastic Deformation Resistance, and the Crystallographic Texture of a Titanium Alloy with a High Aluminum Content. Russ. Metall. 2021, 392–399 (2021). https://doi.org/10.1134/S0036029521040182
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DOI: https://doi.org/10.1134/S0036029521040182