Metal Science and Heat Treatment

, Volume 7, Issue 2, pp 81–86 | Cite as

Heat treatment of the YuNDK35T5 alloy

  • V. K. Baitina
  • K. I. Vlaskina
  • Ya. M. Dovgalevskii
Alloys for Precision Instruments
  • 14 Downloads

Conclusions

  1. 1.

    On the basis of the diagram of the isothermal transformation of the β2-solution in the YuNDK35T5 alloy we have shown the possibility of quenching this alloy from two temperature ranges: 1260–1240 and 900–850°C.

     

The cooling rate at the higher temperatures must be no lower than 100°/min. A lower cooling rate induces high temperature decomposition, and as the result there is a sharp decrease of the magnetic qualities.

  1. 2.

    Cooling at 820–600°C must be carried out at the rate of 20–30°/min.

     
  2. 3.

    We recommend isothermal treatment at the temperature at which the decomposition is most intense (700°C).

     
  3. 4.

    External magnetic field is effective at the temperature at which the decomposition begins (formation of nuclei). When the cooling rate is about 20°/min the magnetic field is effective at 800–760°C.

     
  4. 5.

    One must use multistage tempering for the YuNDK35T5 alloy.

     

Keywords

Magnetic Field Heat Treatment Cool Rate External Magnetic Field Sharp Decrease 

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Literature cited

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Copyright information

© Consultants Bureau 1965

Authors and Affiliations

  • V. K. Baitina
    • 1
  • K. I. Vlaskina
    • 1
  • Ya. M. Dovgalevskii
    • 1
  1. 1.Saratov Polytechnical InstituteSaratovUSSR

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