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Boride phases in nickel-base alloys

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  • 4 Citations

Conclusions

  1. 1.

    The characteristic boride phases in multi-alloyed nickel-base alloys are M3B2 and M5B3.

  2. 2.

    The type of boride phase is determined by the chromium, molybdenum, and tungsten content in the alloy.

  3. 3.

    In alloys in which borides of two types are observed a type M5B3→M3B2 boride reaction is possible during heat treatment and subsequent aging.

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Literature cited

  1. 1.

    F. F. Khimushin, High-Temperature Strength Steels and Alloys [in Russian], Metallurgiya, Moscow (1969).

  2. 2.

    P. I. Kripyakevich, "Homogeneous series of structure types," Kristallografiya,15, 690 (1970).

  3. 3.

    Yu. B. Kuz'ma, V. S. Telegus, and D. A. Kovalyk, "X-ray diffraction investigation of the V-Cr-B, Nb-Cr-B, and Mo-Cr-B systems," Poroshk. Metall., No. 5, 79 (1969).

  4. 4.

    H. E. Collins, Trans. ASM,62, 82 (1969).

  5. 5.

    G. D. Pigrova, "The nature of the boride Z-phase in nickel-base alloys" in: Proceedings of the Central Scientific Research, Design, and Construction Institute for Boilers and Turbines [in Russian], No. 160 (1978), p. 92.

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Additional information

I. I. Polzunov Central Scientific-Research, Design, and Construction Institute for Boilers and Turbines Scientific and Production Union. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 28–30, 35, October, 1985

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Pigrova, G.D. Boride phases in nickel-base alloys. Met Sci Heat Treat 27, 750–752 (1985). https://doi.org/10.1007/BF00699524

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Keywords

  • Chromium
  • Heat Treatment
  • Tungsten
  • Molybdenum
  • Boride