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Structure and properties of intermetallic phases in stainless alloy 06KhN28MDTL for shaped castings

  • Stainless Steels
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Nonfulfillment of the specified heat treatment may lead to formation of excess phases in the form of large light inclusions, films in the grain boundaries, and colonies of fine needles in castings of alloy 06KhN28MDTL after quenching. Microprobe analysis showed that all of them have the same composition: 37.0–39.0% Cr, 9.0–10.5% Mo, 1.6–2.0% Si, 14.0–16.0% Ni, and 31.0–33.0% Fe (carbon determined qualitatively), with high (in comparison with austenite) concentrations of Mo, Cr, Si, and C and low concentrations of Ni and Fe.

  2. 2.

    Brittle intermetallic phases in castings of alloy 06KhN28MDTL are thermally stable and do not go into solution at temperatures up to 1200°, which excludes the possibility of correcting the structure of shaped castings by repeated heat treatment.

  3. 3.

    To prevent precipitation of intermetallic phases in shaped castings, we recommend that the chemical composition of alloy 06KhN28MDTL be corrected — reduction of the molybdenum content to 2.4–2.8%, chromium to 21.0–23.0%, and limiting the silicon content to 0.6% and the amount of residual aluminum to 0.08%.

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Literature cited

  1. L. Colombier and J. Hochman, Stainless and Heat Resistant Steels [Russian translation], Metallurgizdat, Moscow (1958).

    Google Scholar 

  2. F. F. Khimushin, Stainless Steels [in Russian], Metallurgiya, Moscow (1967).

    Google Scholar 

  3. V. Chigal, Intercrystalline Corrosion of Stainless Steels [in Russian], Khimiya, Leningrad (1969).

    Google Scholar 

  4. A. A. Babakov and M. V. Pridantsev, Corrosion Resistant Steels and Alloys [in Russian], Metallurgiya, Moscow (1971).

    Google Scholar 

  5. M. Streicher, Corrosion,20, No. 2, 57 (1964).

    Google Scholar 

  6. I. Ya. Sokol, "Effect of phase transformations on the ductility of austenitic-ferritic steels,” Metalloved. Term. Obrab. Met., No. 12, 33 (1965).

    Google Scholar 

  7. T. A. Zhadan, "Fracture toughness of stainless Cr−Mn and Cr−Mn−Ni steels,” Stal', No. 4, 336 (1968).

    Google Scholar 

  8. I. S. Lupakov and N. A. Vasil'ev, "A new excess phase in Cr−Mn−Ni−Ti steel,” Metalloved. Term. Obrab. Met., No. 12, 24 (1965).

    Google Scholar 

  9. T. A. Pumpyanskaya et al., "Nonmetallic inclusions in cast stainles Cr−Ni−Mo steels stabilized with titanium,” Liteinoe Proizvod., No. 11, 10 (1978).

    Google Scholar 

  10. V. A. Batyrev and V. I. Rydnik, "Quantitative microprobe analysis of multicomponent systems,” Zavod. Lab.36, No. 6, 672 (1970).

    Google Scholar 

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Authors
  1. T. A. Pumpyanskaya
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  2. V. N. Kudryashov
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  3. S. V. Mikhailikov
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Additional information

Institute of Metallurgy, Ural Science Center, Academy of Sciences of the USSR, Sverdlovsk. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 33–35, February, 1982.

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Pumpyanskaya, T.A., Kudryashov, V.N. & Mikhailikov, S.V. Structure and properties of intermetallic phases in stainless alloy 06KhN28MDTL for shaped castings. Met Sci Heat Treat 24, 115–118 (1982). https://doi.org/10.1007/BF00700937

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  • DOI: https://doi.org/10.1007/BF00700937

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