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Physicomechanical properties of nickel-base composite materials with dispersed crystallizing glass particles. Part II

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    With rise in the amount of dispersed phase, the hardness of a composite material increases and its ductility decreases, the actual extent of these changes depending upon the chemical composition of the silicate phase.

  2. 2.

    Tests have shown that, at 20°C, the short-time strength is a maximum for pure nickel, and falls with increase in dispersed-phase content.

  3. 3.

    In the test temperature range 20–400°C, a definite correlation is observed between the short-time strength of composite materials and the coefficient of linear thermal expansion of their dispersed silicate phases. In composites with dispersed phases having a low coefficient of thermal expansion, the strengthening effect is more pronounced.

  4. 4.

    A nickel-base composite material containing dispersed silicate phase I possesses the best operating characteristics at 800°C. With decrease in the degree of dispersion of the strengthening phase, the mechanical properties of the material improve.

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Literature cited

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Authors and Affiliations

  1. A. A. Baikov Institute of Metallurgy, Academy of Sciences of the USSR, USSR

    B. L. Rudoi, M. Kh. Shorshorov, G. M. Matveev, B. A. Borok & R. P. Shchegoleva

Authors
  1. B. L. Rudoi
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  2. M. Kh. Shorshorov
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  3. G. M. Matveev
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  4. B. A. Borok
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  5. R. P. Shchegoleva
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Translated from Poroshkovaya Metallurgiya, No. 4 (136), pp. 17–22, April, 1974.

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Rudoi, B.L., Shorshorov, M.K., Matveev, G.M. et al. Physicomechanical properties of nickel-base composite materials with dispersed crystallizing glass particles. Part II. Powder Metall Met Ceram 13, 271–275 (1974). https://doi.org/10.1007/BF00796799

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  • DOI: https://doi.org/10.1007/BF00796799

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