Skip to main content
Log in

Elimination of Coarse-Grain Property in Steel 25KhN3MFA After Overheating to Different Temperatures

  • Published:
Metal Science and Heat Treatment Aims and scope

The effect of the temperature of overheating in the range of 950 – 1250°C on the texture and grain size of steel 25KhN3MFA subjected to subsequent heating at 700 – 1100°C at a rate of 100 K/h is studied. The effect of the initial texture and grain size on the temperature of disappearance of large grains is determined. Recommendations are given on application of the results obtained for choosing heat treatment regimes for large forgings.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

  1. I. A. Borisov, “Effect of overheating on the texture and grains of rotor steel,” Metalloved. Term. Obrab. Met., No. 7, 3 – 9 (2010).

    Google Scholar 

  2. I. A. Borisov, Investigation of Special Features of Coarse-Grained Structure in Steels for Cold-Rolling Rolls and Dies, Author’s Abstract of Candidate’s Thesis [in Russian], TsNIITMASh, Moscow (1968), 140 p.

  3. I. A. Borisov, Investigation, Development and Installation of Steels and Process of Heat Treatment of Large Rotors of Powerful Steam Turbines and Generators, Author’s Abstract of Doctoral’s Thesis [in Russian], TsNIITMASh, Moscow (1980), 665 p.

  4. V. D. Sadovskii, Inheritance of Structure in Steel [in Russian], Metallurgiya, Moscow (1973), 171 p.

    Google Scholar 

  5. A. A. Astaf’ev and I. A. Borosiov, “Correction of coarse grain structure in alloyed tool steels,” Metalloved. Term. Obrab. Met., No. 1, 41 – 45 (1968).

    Google Scholar 

  6. I. A. Borisov, “Refinement of austenite grains in large forgings from steel 25KhN3MFA,” Metalloved. Term. Obrab. Met., No. 2, 2 – 5 (1978).

    Google Scholar 

  7. I. A. Borisov, “Heat treatment of critical parts in power engineering,” Metalloved. Term. Obrab. Met., No. 9, 2 – 6 (1979).

    Google Scholar 

  8. I. A. Borisov and A. I. Borisov, “Simulation of principal parameters of heat treatment of large forgings,” Metalloved. Term. Obrab. Met., 16 – 18 (1995).

  9. I. A. Borisov, “Choice of optimum quenching parameters of large rotors from steel 25KhN3MFA,” Metalloved. Term. Obrab. Met., No. 12, 2 – 5 (1980).

    Google Scholar 

  10. I. A. Borisov, “Recrystallization of steel in coarse-grain condition under heating,” Metalloved. Term. Obrab. Met., No. 7, 8 – 10 (1995)

    Google Scholar 

  11. I. A. Borisov and A. V. Dub, “Effect of the duration of tempering on the texture and grains of overheated rotor steel,” Metalloved. Term. Obrab. Met., No. 3, 3 – 9 (2013).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 11 – 16, December, 2015.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Borisov, I.A., Dub, A.V. Elimination of Coarse-Grain Property in Steel 25KhN3MFA After Overheating to Different Temperatures. Met Sci Heat Treat 57, 713–718 (2016). https://doi.org/10.1007/s11041-016-9947-1

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11041-016-9947-1

Key words

Navigation