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Eutectic in tungsten-molybdenum high-speed steel

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

Conclusions

  1. 1.

    Cast steel R6M5 has three basic morphological types of eutectic-skeleton, spindle, and lamellar.

  2. 2.

    Carbides of the lamellar and spindle eutectics in steel of the same composition differ in their concentration of vanadium, which is 1.6 times larger in the lamellar eutectic than the spindle eutectic.

  3. 3.

    The ratio of morphological types of eutectic can be varied by changing the concentrations of the basic alloying elements and the cooling rate during solidification.

  4. 4.

    Lamellar and spindle eutectics are formed on the basis of hexagonal carbide with a lattice of the V2C type. Spindle eutectic is formed due to ordinary cooperative growth of carbide and eutectic. Twinning during solidification of V2C carbide leads to formation of lamellar eutectic.

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Literature cited

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Authors
  1. Yu. N. Taran
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  2. P. F. Nizhnikovskaya
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  3. L. M. Snagovskii
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  4. S. B. Vukelich
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  5. A. M. Nesterenko
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 46–49, October, 1979.

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Taran, Y.N., Nizhnikovskaya, P.F., Snagovskii, L.M. et al. Eutectic in tungsten-molybdenum high-speed steel. Met Sci Heat Treat 21, 791–795 (1979). https://doi.org/10.1007/BF00708387

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  • DOI: https://doi.org/10.1007/BF00708387

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