Metal Science and Heat Treatment

, Volume 12, Issue 3, pp 234–237 | Cite as

Effect of original structure on the depth and hardness of the nitrided case

  • Yu. M. Lakhtin
  • A. A. Lyubkin
Technical Information

Conclusions

  1. 1.

    With increasing tempering temperatures the case depth and hardness decrease on steels 38KhMYuA and 40Kh.

     
  2. 2.

    The use of preliminary decarburizing before nitriding in a mixed atmosphere (70% N2+30% NH3) results in high hardness and case depth without an increase of brittleness in steel 38KhMYuA.

     
  3. 3.

    Nitriding with over 60% dissociation lowers the hardness and case depth.

     

Keywords

Atmosphere Brittleness Nitrided High Hardness Original Structure 

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Literature cited

  1. 1.
    T. Noren and L. Kindbom, Stahl un Eisen,78, No. 26 (1958).Google Scholar
  2. 2.
    Yu. M. Lakhtin, Physical Bases of the Nitriding Process [in Russian], Mashgiz, Moscow (1948).Google Scholar

Copyright information

© Consultants Bureau 1970

Authors and Affiliations

  • Yu. M. Lakhtin
  • A. A. Lyubkin

There are no affiliations available

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