Metal Science and Heat Treatment

, Volume 27, Issue 1, pp 48–50 | Cite as

Structure and properties of VT20L alloy containing 0.1–0.3% C

  • L. V. Shpakovskaya
  • Yu. F. Klimov
  • V. V. Luk'yanov
Titanium and Its Alloys
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Conclusions

  1. 1.

    Cast VT20L titanium alloy contaminated during remelting by carbon (up to 0.1–0.3%) possesses significant segregation microinhomogeneity as the result of formation in solidification of TiC-based inclusions of carbide δ-phase, which is the reason for the reduced impact strength.

     
  2. 2.

    Diffusion annealing of the forgings in the 900–1000°C range for 3–5h leads to dissolution of the δ-phase and provides a high combination of mechanical properties of 0t ≥ 1000 MPa, δ≥10%, anda ≥ 0.3 MJ/m2, the stability of which is preserved after heating to 400°C.

     

Keywords

Titanium Mechanical Property Carbide Titanium Alloy Impact Strength 

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Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • L. V. Shpakovskaya
  • Yu. F. Klimov
  • V. V. Luk'yanov

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