Metal Science and Heat Treatment

, Volume 14, Issue 3, pp 197–199 | Cite as

Mechanical properties of steel N14Kh5M3TYu after heat treatment

  • P. A. Prokhorov
  • Yu. A. Larichev
  • A. F. Goncharov
Maraging Steels
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Conclusions

  1. 1.

    Quenching from 820°C, usually recommended for maraging steels, does not make it possible to obtain the optimal properties for steel N14Kh5M3TYu. The highest ductility and toughness are attained by quenching from 950–980°C.

     
  2. 2.

    The optimal combination of strength, ductility, and toughness results from quenching from these temperatures and aging at 480–520°C.

     
  3. 3.

    Repeated aging results in an additional increase of the strength beginning at temperatures of 300°C and continuing up to the primary aging temperature (480–520°C), which may be due to some differences in the kinetics and composition of precipitates that depend on the original condition of the solid solution before aging.

     

Keywords

Mechanical Property Heat Treatment Solid Solution Ductility Optimal Combination 

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Literature cited

  1. 1.
    D. Peters, Trans. AIME,243, No. 12 (1967).Google Scholar
  2. 2.
    D. Gorn, J. of Metals,16, No. 10 (1964).Google Scholar
  3. 3.
    M. D. Perkas and V. M. Kardonskii, High-Strength Maraging Steels [in Russian] (1970).Google Scholar

Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1972

Authors and Affiliations

  • P. A. Prokhorov
  • Yu. A. Larichev
  • A. F. Goncharov

There are no affiliations available

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