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Methods of Refining Coarse-Grained Structures of Titanium Alloys

  • L. A. Elagina
  • A. I. Gordienko
  • O. P. Evmenov
  • V. V. Ivashko

Abstract

The specific features of titanium alloys are their tendency towards grain growth at temperatures ≥ Ttrans. and the resulting drastic deterioration of their mechanical properties and ductility in particular (beta embrittlement). Since the coarse-grained structure of titanium alloys cannot be improved by phase transformation hardening(1), the main method of grain refinement is at present a rather laborious process including sufficient beta deformation and considerable (≥ 50%) alpha+beta deformation. The latter makes it possible to obtain a fine-grained structure of globular or fibrous type and, accordingly, high strength and ductility, but it fails to provide an optimum level of high-temperature strength and fracture toughness which can be attained (with adequate ductility) only in the case of a limited beta-transformed (plate-like alpha) structure (Dgrain = 150 to 200 μm depending upon the alloy and temper.).

Keywords

Titanium Alloy Resistance Heating Beta Phase Alpha Phase Cast Billet 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Reference

  1. 1.
    Sadovsky, V. D. and Bogachev, Fizika metallov i meyallovedeniye, 1960, v. 10, 132.Google Scholar

Copyright information

© Springer Science+Business Media New York 1982

Authors and Affiliations

  • L. A. Elagina
    • 1
  • A. I. Gordienko
    • 1
  • O. P. Evmenov
    • 1
  • V. V. Ivashko
    • 1
  1. 1.All-Union Institute of Light Alloys, and Physical Technical InstituteBSSR Academy of SciencesUSSR

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