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Structural changes in composite materials with iron-base and nickel-base matrixes

  • Composite Materials
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Secondary recrystallization occurs at the contact between specially alloyed molybdenum filaments with a Nichrome matrix, and an intermetallic zone as much as 12μ wide with a high hardness is formed at the boundary with the matrix.

  2. 2.

    In a Fecraloy matrix the alloyed molybdenum filament does not recrystallize and the addition of powdered Cr-W-Mo alloy prevents formation of a brittle intermetallic layer at the boundary.

  3. 3.

    The addition of the powdered Cr-W-Mo alloy to the Nichrome matrix restrains secondary recrystallization processes in the molybdenum filament. The transition zone at the matrix-filament interface has a low microhardness.

  4. 4.

    The powdered Ni-W-Mo alloy activates secondary recrystallization of the molybdenum filament in the Nichrome-molybdenum and Fecraloy-molybdenum composites. This indicates that nickel lowers the stability of the structure of molybdenum with holding at elevated temperatures.

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Literature cited

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  3. F. P. Banas et al., "Composite materials of Nichrome-molybdenum and tungsten," Metal, i Term. Obrabotka Metal., No. 8, 6–14 (1971).

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  4. B. A. Klypin, A. M. Maslov, and S. B. Maslenkov, "Reinforcing heat resistant alloys with filaments," Metal. i Obrabotka Metal., No. 8, 2–6 (1971).

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  5. F. P. Banas et al., "Effect of structural changes on the properties of a heat resistant composite material with a nickel-chromium matrix," Izv. Vuzov, Tsvetnaya Metallurgiya, No. 5, 148–151 (1971).

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  6. D. M. Karpinos et al., "Interactions at phase boundaries in composite materials with a Nichrome matrix and tungsten and molybdenum filaments," Poroshkovaya Metallurgiya, No. 2, 64–75 (1974).

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Authors
  1. A. N. Savchuk
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  2. V. E. Ol'shanetskii
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  3. F. P. Banas
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  4. G. F. Myal'nitsa
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Additional information

V. Ya. Chubar' Zaporozh'e Machine Construction Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 63–66, August, 1974.

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Savchuk, A.N., Ol'shanetskii, V.E., Banas, F.P. et al. Structural changes in composite materials with iron-base and nickel-base matrixes. Met Sci Heat Treat 16, 700–702 (1974). https://doi.org/10.1007/BF00658441

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  • DOI: https://doi.org/10.1007/BF00658441

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