Conclusions
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1.
Increasing the degree of deformation in cold and warm rolling increases the texture of α alloy VT5-1.
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2.
With increasing deformation of α+β alloy VT14 the quantity of basal texture, changes, reaching a peak at 70% deformation.
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3.
For α alloy VT5-1, σ bib /σb is equal to 1.45, while it is 1.15 for α+β alloy VT14 and 1.13 for β alloy VT15.
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4.
Heating to 1000–1100° in the β region weakens the basal texture of titanium alloys, leading to pyramidal and prismatic orientations. Heating in the α or α+β regions slightly reduces the intensity of the basal texture (by 10–15%). Heating to 880° for quenching leads to a greater reduction of the deformation texture than annealing at 750°.
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5.
The decomposition of the original β phase during aging of alloy VT14 changes the texture of the precipitated α phase to prismatic, which facilitates deformation through the thickness of the plate and lowers the strengthening factor to 0.8.
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6.
Rolling after heating to 800° with small deformation in each pass and changing the direction of deformation by 45° in each pass ensures a larger percentage of the basal texture in alloy VT14 than rolling without changing the direction, with larger deformation in each pass at the same total deformation.
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Liturature cited
S. G. Glazunov, A. I. Khorev, and V. N. Moiseev, "Structural strength of heat-treated titanium alloys," Metalloved. Term. Obrab. Met., No. 6, 2 (1964).
A. I. Khorev et al., "Effect of heat treatment and cladding on the strength of titanium alloys, VT14, VT15, and VT16 in biaxial tension," Tsvetn. Met., No. 9, 6 (1965).
Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 57–60, February, 1977.
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Khorev, A.I., Krasnozhon, A.I. & Babaréko, A.A. Texture strengthening of titanium alloys. Met Sci Heat Treat 19, 144–146 (1977). https://doi.org/10.1007/BF00703163
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DOI: https://doi.org/10.1007/BF00703163