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Features of the influence of nanodispersed additions on the process of and properties of the Fe-Co-Cu-Sn sintered alloy

  • Refractory, Ceramic, and Composition Materials
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Russian Journal of Non-Ferrous Metals Aims and scope Submit manuscript

Abstract

Features of the influence of Al2O3, ZrO2, WC, and Si3N4 nanoparticles on the process of obtainment, mechanical, and tribological properties of the 74%Fe-15%Co-9%Cu-1%Sn alloy obtained by powder metallurgy methods are investigated. Mixing nanoparticles with alloy powder was performed in a centrifugal planetary mill. It is shown that the nanoparticles uniformly distributed over the charge complicate the processes of compaction during cold pressing and sintering. The alloy (dispersion strengthened by nanoparticles), which was obtained by the technology of hot pressing, is characterized by high mechanical and tribological properties. Wear resistance increases by a factor of four, hardness is increased by 10–16 HRB, and the bending breaking point is increased by 54%.

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Authors and Affiliations

  1. Scientific and Educational Center of Self-Propagating High-Temperature Synthesis, Moscow State Institute of Steel and Alloys (State Technological University) and Institute of Structural Macrokinetics and Problems of Material Sciences, Russian Academy of Sciences, Leninskii pr. 4, Moscow, 119049, Russia

    A. A. Zaitsev, V. V. Kurbatkina & E. A. Levashov

Authors
  1. A. A. Zaitsev
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  2. V. V. Kurbatkina
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  3. E. A. Levashov
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Correspondence to A. A. Zaitsev.

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Original Russian Text © A.A. Zaitsev, V.V. Kurbatkina, E.A. Levashov, 2008, published in Izvestiya VUZ. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2008, No. 5, pp. 35–41.

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Zaitsev, A.A., Kurbatkina, V.V. & Levashov, E.A. Features of the influence of nanodispersed additions on the process of and properties of the Fe-Co-Cu-Sn sintered alloy. Russ. J. Non-ferrous Metals 49, 414–419 (2008). https://doi.org/10.3103/S1067821208050180

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  • DOI: https://doi.org/10.3103/S1067821208050180

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