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Strength of two-phase aluminum-base mixtures

Conclusions

  1. 1.

    Mixtures of aluminum with a second phase of high hardness do not obey the additivity rule with respect to the hardness and strength as a function of the hard phase concentration. A region of concentrations exists in which the hardness and resistance to crushing are independent of the hard phase concentration.

  2. 2.

    In the region of high concentrations of the hard phase approaching close packing the resistance in compression (hardness) and the resistance in tension (crushing force) vary in diametrically opposite directions—the hardness increases and the crushing strength decreases.

  3. 3.

    It was shown that it is possible to estimate the tendency to chemical interaction between phases by the variation of hardness with high-temperature heating. The chemical interaction of aluminum with corundum was found to be weak or nonexistent.

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Literature cited

  1. 1.

    N. S. Kurnakov and S. F. Zhemchuzhnyi, Hardness of Metallic Solid Solutions and Certain Chemical Compounds, in Collection of Selected Works, ZhRFKhO, Vol. 40 [in Russian] (1908).

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    P. O. Pashkov, Zh. Tekh. Fiz.,24 (1954).

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    Ya. B. Fridman, Deformation and Failure of Metals Under Static and Impact Loading [in Russian], Moscow, Oborongiz (1946).

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    M. M. Khrushchov and M. A. Babichev, In: Friction and Wear in Machines [in Russian], Izd. AN SSSR (1958).

  5. 5.

    Preparation and properties of structural materials strengthened with fibers, Ékspress-informatsiya. Metallovedenie i Termoobrabotka, No. 4 (1965).

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    Investigation at High Temperatures, Translation from English, V.A. Kirillin and A. E. Sheindlin, eds., IL (1962).

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    High-Temperature Techniques, Translated from English, V. P. Elyutin, ed., IL (1959).

  8. 8.

    G. I. Pogodin-Alekseev and V. V. Zaboleev-Zotov, In: Metal Science and Heat Treatment of Metals, No. 2 [in Russian], Moscow, Mashgiz (1960).

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Additional information

Volgograd Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 22–30, June, 1967.

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Burminskaya, L.N., Zaboleev-Zotov, V.V., Nikulin, Y.M. et al. Strength of two-phase aluminum-base mixtures. Met Sci Heat Treat 9, 430–432 (1967). https://doi.org/10.1007/BF00657587

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Keywords

  • Aluminum
  • Opposite Direction
  • Corundum
  • High Hardness
  • Chemical Interaction