Skip to main content
SpringerLink
Log in

Properties of carburized steel 18Kh2N4VA after overheating

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

Conclusions

  1. 1.

    When steel 18Kh2N4VA is heated to 1300–1350° and cooled in air the structure of the fracture is crystalline or lithoidal. In subsequent heat treatment the crystalline fracture becomes lithoidal.

  2. 2.

    Quenching and low-temperature tempering of the overheated steel retain the high strength charracteristics, including the fatigue strength, but the plasticity decreases sharply.

  3. 3.

    The structure of the case on overheated steel differs greatly from that on steel not overheated. In the steel not overheated the carbide network resulting from carburizing is fine and even. In the overheated steel the carbide network is coarse and occurs in the boundaries of former austenite grains formed during overheating.

  4. 4.

    Overheating after carburizing and heat treatment hardly reduces the resistance to bending or fracture toughness, but substantially reduces the fatigue strength.

  5. 5.

    When the lithoidal structure is retained in the carburized and heat treated steel after overheating the resistance of the case to galling decreases.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature cited

  1. K. A. Malyshev, Stal', No. 11-12 (1944).

  2. V. D. Sadovskii, K. A. Malyshev, et al., Stal', No. 6 (1955).

  3. V. D. Sadovskii et al., Transformations during Heating of Steel [in Russian], Metallurgizdat, Moscow (1954).

    Google Scholar 

  4. V. I. Arkharov, Crystallography of the Hardening of Steel [in Russian], Metallurgizdat, Moscow (1951).

    Google Scholar 

  5. M. P. Braun and P. E. Voronov, Tr. Inst. Fiz. Metallov UFAN SSSR, No. 8 (1946).

  6. E. Houdremont, Special Steels, Vol. 1 [Russian translation], Metallurgizdat, Moscow (1959).

    Google Scholar 

  7. L. M. Fel'dman and M. A. Balter, Zavod. Lab., No. 12 (1955).

Download references

Authors
  1. V. S. Sagaradze
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Urals Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 9–13, October, 1970.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sagaradze, V.S. Properties of carburized steel 18Kh2N4VA after overheating. Met Sci Heat Treat 12, 818–822 (1970). https://doi.org/10.1007/BF00654464

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00654464

Keywords

Search

Navigation