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Metal Science and Heat Treatment

, Volume 27, Issue 4, pp 247–252 | Cite as

Laser hardening of 11Kh12N2V2MF steel

  • Yu. M. Lakhtin
  • A. N. Safonov
  • T. V. Gulyaeva
  • Ya. D. Kogan
  • A. V. Buryakin
Heat Treatment with the Use of Highly Concentrated Energy Sources

Conclusions

  1. 1.

    The structure, microhardness, and dimensions of the hardened zones obtained in laser heat treatment depend upon the density of the laser radiation power and the rate of movement of the specimen relative to the beam while in laser alloying with nitrogen they depend upon the quantity of impregnating coating.

     
  2. 2.

    The maximum microhardness of the zones of fusion of 11Kh12N2V2MF steel obtained as the result of laser heat treatment is H 710 and H 540 in continuous and pulsed radiation, respectively.

     
  3. 3.

    In laser alloying of 11Kh12N2V2MF steel with nitrogen the maximum microhardness of the zones of fusion with the use of continuous and pulsed radiation sources is H 900 and H 715, respectively.

     
  4. 4.

    To obtain the maximum microhardness and thickness of the hardened layers on 11Kh12N2V2MF steel the use in laser alloying with nitrogen of continuous radiation with a power of P>2.5 kW with application of a carbamide coating of 600 g/m2 is recommended.

     

Keywords

Nitrogen Radiation Carbamide Heat Treatment Laser Radiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Literature cited

  1. 1.
    L. I. Mirkin, Physical Fundamentals of the Treatment of Metals with Laser Beams [in Russian], Moscow State Univ. (1975).Google Scholar
  2. 2.
    N. N. Rykalin, A. A. Uglov, and A. N. Kokora, Laser Treatment of Materials [in Russian], Mashinostroenie, Moscow (1975).Google Scholar
  3. 3.
    A. A. Uglov and M. M. Nizametdinov, "The change in microhardness of steels with high pressures of the surrounding medium under the action of laser radiation," Fiz. Khim. Obrab. Mater., No. 2, 133–135 (1977).Google Scholar
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    V. Anchev and Kh. Nachev, "Gas nitriding on steel with a laser beam," Mashinostroenie, No. 4, 150–153 (1977).Google Scholar
  5. 5.
    Yu. M. Lakhtin, Ya. D. Kogan, and A. V. Buryakin, "Alloying of steels with boron and nitrogen under the action of optical quantum generator radiation," in: New Processes of Surface Hardening of Metals [in Russian], Tsent. Nauch.-Issled. Inst. Tekh.-Ekon. Issled. Tyazh. Mashinostr., Moscow (1982), 13–13.Google Scholar
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    A. A. Uglov and A. L. Galiev, "The absorption of nitrogen by the molten metal in the zone of action of laser radiation," Fiz. Khim. Obrab. Mater., No. 4, 10–13 (1981).Google Scholar

Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • Yu. M. Lakhtin
  • A. N. Safonov
  • T. V. Gulyaeva
  • Ya. D. Kogan
  • A. V. Buryakin

There are no affiliations available

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