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Dynamic recrystallization of KhN77TYuR alloy in isothermal deformation

  • Heat-Resistant Steels and Alloys
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Isothermal deformation of KhN77TYuR alloy at temperatures of 950 and 1000°C and rates of 6·10−2, 2.5·10−3, and 6·10−2 sec−1 is accompanied by partial dynamic recrystallization. The microstructure of the alloy consists of fine grains elongated in the direction of deformation. With a decrease in the deformation rate the flow stress drops.

  2. 2.

    An increase in the isothermal deformation temperature to 1050°C (tdef>0.8tmelt) causes intense occurrence of dynamic recrystallization. In this case the microstructure consists of coarsened equiaxial grains. With a decrease in deformation rate there is a significant increase in grain size and a sharp drop in flow stress.

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Authors
  1. D. I. Braslavskii
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  2. I. A. Izakov
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  3. I. N. Roshchina
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 39–41, May, 1984.

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Braslavskii, D.I., Izakov, I.A. & Roshchina, I.N. Dynamic recrystallization of KhN77TYuR alloy in isothermal deformation. Met Sci Heat Treat 26, 365–368 (1984). https://doi.org/10.1007/BF00707411

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  • DOI: https://doi.org/10.1007/BF00707411

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