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Scientific aspects of the choice of the regulated structural state and texture of “marine” titanium alloys

  • Titanium Alloys
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Deformation of pseudo-α-alloy under a temperature and rate regime that provides the occurrence of the process of dynamic recrystallization of the β-phase independently of the deformation scheme, promotes the formation of a multi-component texture with disperse and uniform arrangement of the texture components having the same crystallographic orientation. The structure of the alloy consists of recrystallized β-grains with a lamellar transcrystalline structure and individual round uniformly distributed α-grains. Such a state of structure and texture provides isotropic properties in the plane of the sheet and a high resistance to LCF in a corrosive medium.

  2. 2.

    Deformation under temperature-and-rate regimes that do not provide processes of dynamic recrystallization of the β-phase leads either to the formation of a predominantly prismatic structure or a texture with deviated basal plane with a band pattern of texture components with the same crystallographic orientation and a band structure independently of the deformation scheme. In the presence of a prismatic texture, the mechanical properties are substantially anisotropic and the resistance to LCF in a corrosive medium diminishes in the transverse direction.

  3. 3.

    The test method employing a plastometer used in the present work allowed us to determine the temperature and deformation range of the formation of specific structure and texture states in pseudo-α-alloy with a sufficiently high reliability.

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Authors
  1. S. S. Ushkov
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  2. V. N. Kopylov
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  3. I. N. Razuvaeva
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 38–44, September, 1999.

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Ushkov, S.S., Kopylov, V.N. & Razuvaeva, I.N. Scientific aspects of the choice of the regulated structural state and texture of “marine” titanium alloys. Met Sci Heat Treat 41, 402–407 (1999). https://doi.org/10.1007/BF02469879

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  • DOI: https://doi.org/10.1007/BF02469879

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