Metal Science and Heat Treatment

, Volume 9, Issue 4, pp 325–326 | Cite as

Effect of cooling rate on structure and hardness of quenched steel

  • G. M. Vorob'ev
  • A. F. Siukhin
  • V. I. Popova
Technical Information

Conclusions

  1. 1.

    It was shown that by varying the relative motion of heated samples in water one can achieve very high cooling rates. A cooling rate of 7000 deg/sec at a depth of 1 mm can be attained in samples 6×6 ×8 mm.

     
  2. 2.

    The microhardness of low-carbon steel is increased by raising the cooling rate from 1000 to 7000 deg/sec during quenching.

     
  3. 3.

    In commercially pure iron (0.06% C) the increase in microhardness is accompanied by an increase in microdeformation and refining of the mosaic blocks; in steel with 0.15% C one observes only refining of the blocks, while the microdeformation decreases.

     

Keywords

Iron Cool Rate Relative Motion Cooling Rate Pure Iron 

Literature cited

  1. 1.
    L. I. Lysak, Problems of Physics of Metals and Metal Science [in Russian], Izd. Akad. Nauk UkrSSR, No. 5 (1954).Google Scholar
  2. 2.
    L. I. Lysak, Problems of Physics of Metals and Metal Science [in Russian], Izd. Akad. Nauk UkrSSR, No. 6 (1955).Google Scholar

Copyright information

© Consultants Bureau 1967

Authors and Affiliations

  • G. M. Vorob'ev
  • A. F. Siukhin
  • V. I. Popova

There are no affiliations available

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