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Special features of dissolution of the laves phase under the conditions of rapid electron heating for quenching

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Conclusions

  1. 1.

    The dissolution of the excess Laves phase in alloy 36NKhTYuM8 under the conditions of rapid quenching is maximum in the stage of heating to 1200°C, and the efficiency of the treatment increases in proportion to the heating rate. We have suggested an explanation of the determining role of the heating rate in the dissolution of the excess phase, which is based on the concept of high thermal stresses that appear on the interphase boundaries because of the difference in the coefficients of thermal expansion of the matrix and the phase.

  2. 2.

    High plastic deformation of alloy 36NKhTYuM8 (ε=70%) is accompanied by deformation and cracking of the particles of the excess Laves phase, but the nonequilibrium nature of the structure of these particles does not influence noticeably their solubility under the conditions of rapid heating.

  3. 3.

    The process of primary recrystallization that occurs in deformed alloy in the stage of rapid heating does not stimulate the dissolution of the excess phase, which means that the efficiency of rapid heating in quenching of alloys can be used independently of their initial state.

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Authors and Affiliations

  1. N. É. Bauman Moscow State Technical University, Moscow, Russia

    O. M. Khovova, O. M. Zhigalina, I. O. Dumanskii & V. G. Leshkovtsev

  2. Institute of Crystallography of the Russian Academy of Sciences, Moscow, Russia

    O. M. Khovova, O. M. Zhigalina, I. O. Dumanskii & V. G. Leshkovtsev

  3. Arkhangelsk State Technical University, Arkhangelsk, Russia

    O. M. Khovova, O. M. Zhigalina, I. O. Dumanskii & V. G. Leshkovtsev

Authors
  1. O. M. Khovova
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  2. O. M. Zhigalina
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  3. I. O. Dumanskii
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  4. V. G. Leshkovtsev
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 13–19, June, 2000.

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Khovova, O.M., Zhigalina, O.M., Dumanskii, I.O. et al. Special features of dissolution of the laves phase under the conditions of rapid electron heating for quenching. Met Sci Heat Treat 42, 214–220 (2000). https://doi.org/10.1007/BF02471314

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  • DOI: https://doi.org/10.1007/BF02471314

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