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Selection of quenching conditions for the KhN56MBYuD alloy of electroslag remelting

  • High-Temperature-Strength Steels and Alloys
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Heating the KhN56MBYuD alloy before quenching at 980–1180°C for 0.5–2 h helps dissolve the eutectic, increase the volume fraction of the sulfide (compared to the as-received state), coagulate the carbonitride, and significantly grow the grains of the γ solid solution.

  2. 2.

    The most homogeneous structure with a low content of nonmetallic inclusions, uniform distribution of the carbonitride, and grain size of the γ solid solution of less than 600 μm were found in the KhN56MBYuD (ESM) alloy after holding at 1130°C for 2 h.

  3. 3.

    The short-term mechanical properties of a cast, tubular billet after heat treatment under the optimum conditions are a little bit higher than the properties obtained in hot-deformed rods. This leads us to recommend the KhN56MBYuD alloy for cast massive objects which are not possible to produce by hot-deformation techniques.

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References

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  2. A. B. Korostelev, Yu. A. Bashnin, and A. D. Ivanov, "Kinetics of phase transformations in the KhN56MBYuD alloy produced by various techniques," Paper No. 5778 Deposited with Chermetinformatsiya (1991).

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  5. Ya. N. Malinochka and G. Z. Koval'chuk, Sulfides in Steels and Cast Irons [in Russian], Metallurgiya, Moscow (1988).

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Authors
  1. Yu. A. Bashnin
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  2. A. B. Korostelev
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Additional information

MVMI, NIKIÉT. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 19–22, March, 1993.

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Bashnin, Y.A., Korostelev, A.B. Selection of quenching conditions for the KhN56MBYuD alloy of electroslag remelting. Met Sci Heat Treat 35, 150–154 (1993). https://doi.org/10.1007/BF00776840

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  • DOI: https://doi.org/10.1007/BF00776840

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