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The effect of sigma phase on the mechanical properties of heat resistant steels

  • Hot Strength and Relaxation Properties
  • Published:
Metal Science and Heat Treatment of Metals Aims and scope

Conclusions

  1. 1.

    A study of the fracture mechanism of a two-phase 18-8 type steel containing sigma phase and deformed in vacuum at 650–800 °C showed that the sigma phase possesses a rather good plasticity at high temperatures so that the cracks in the specimens under investigation appeared inside the austenite grain junctions.

  2. 2.

    The ordinarily brittle sigma phase does not impair the overall plasticity of the steel when deformed at high temperature during short- as well as long-time tests.

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References

  1. M. G. Lozinskii, High-Temperature Metallography, Mashgiz Press, 1956. [English translation available from Pergamon Press and from Office of Technical Services, Washington, D.C.]

  2. E. E. Levin and E. M. Pivnik,Metallov. i Obra. Met., 1957, #2, 27–31.

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Authors and Affiliations

  1. Polzunov Central Boiler and Turbine Institute, USSR

    E. E. Levin,  E. M. Pivnik &  P. M. Libman

Authors
  1. E. E. Levin
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  2. E. M. Pivnik
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  3. P. M. Libman
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Levin, E.E., Pivnik, E.M. & Libman, P.M. The effect of sigma phase on the mechanical properties of heat resistant steels. Met Sci Heat Treat 1, 19–21 (1959). https://doi.org/10.1007/BF00813838

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  • DOI: https://doi.org/10.1007/BF00813838

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