Metal Science and Heat Treatment

, Volume 15, Issue 12, pp 1033–1036 | Cite as

Increasing the toughness and ductility of steel 000Kh11N10M2T in large sections

  • E. S. Kagan
  • B. S. Smirnov
  • V. S. Fridman
Stainless Steels
  • 71 Downloads

Conclusions

  1. 1.

    Hot rolled rings manufactured by the full cycle consisting of water quenching from 1200°, rolling at 1050°, hardening from 860°, and aging at 500–525° have a high ductility and toughness in the tangential direction and satisfactory properties in the axial directions.

     
  2. 2.

    The ductility and toughness of rings manufactured by the shortened cycle without preliminary quenching from 1200° differ little from those of rings quenched from 1200°. However, the fractures of impact test samples have a distinct texture, and therefore the equivalence of these treatments can be confirmed only by additional studies of larger sections.

     
  3. 3.

    The ductility and toughness of hot rolled rings can be increased by heat treatment to an ultimate strength σb=120−130 kg/mm2, which permits austenite to be retained in the structure: 600° for 2 h or 600° for 5 h+500° for 2 h.

     
  4. 4.

    It was found that the ductility and toughness of steel 000Kh11N10M2T can be increased by heat treatment to an ultimate strength σb=135−150 kg/mm2, including aging at 600°, hardening from 860°, and aging at 500°.

     

Keywords

Heat Treatment Austenite Ductility Test Sample Axial Direction 

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Literature cited

  1. 1.
    E. S. Kagan, Ya. M. Potak, and V. V. Sachkov, "Mechanical properties of stainless maraging steels", Metal. i Term. Obrabotka Metal., 4, 5–9 (1969).Google Scholar
  2. 2.
    G. Speadler, R. Brown, and W. Murphy, TASM,60, 418 (1967).Google Scholar
  3. 3.
    P. Legendre and J. Castegne, La Metallurgie,100, 2, 105 (1968).Google Scholar
  4. 4.
    O. K. Revyakina et al., "Heat treatment of large forgings and bars of steel 000N18K9M5T", Metal. i Term. Obrabotka Metal., 4, 18–21 (1971).Google Scholar

Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1974

Authors and Affiliations

  • E. S. Kagan
  • B. S. Smirnov
  • V. S. Fridman

There are no affiliations available

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