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Influence of CrB2 Powder on the Physicomechanical Properties of Fe–Cu–Ni–Sn Composites Sintered By Vacuum Hot Pressing

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Materials Science Aims and scope

We study the influence of admixtures of CrB2 powder on the mechanical (microhardness H and modulus of elasticity E) and tribological (wear resistance) characteristics of composite materials based on iron, copper, nickel, and tin sintered by the method of cold pressing with subsequent vacuum hot pressing. The source powders have the range of particle sizes 5–50 μm. It is shown that the hardness and elasticity modulus increase with the content of CrB2. At the same time, the wear rate decreases if the CrB2 content remains lower than 2 wt.% but then increases. The values of resistances to the elastic (H/E) and plastic (H3/E2) deformations of the material exhibit good correlation with the level of wear resistance. The causes of changes in the physicomechanical and operating properties of sintered composite materials are discussed.

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Authors and Affiliations

  1. V. Bakul Institute for Superhard Materials, National Academy of Sciences of Ukraine, Kyiv, Ukraine

    V. А. Mechnik, V. М. Kolodnitskyi & О. М. Іsonkin

  2. National Aviation University, Kyiv, Ukraine

    І. М. Zakiev, V. І. Zakiev & S. R. Ignatovich

Authors
  1. V. А. Mechnik
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  2. V. М. Kolodnitskyi
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  3. І. М. Zakiev
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  4. V. І. Zakiev
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  5. S. R. Ignatovich
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  6. О. М. Іsonkin
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Correspondence to V. А. Mechnik.

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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 56, No. 6, pp. 116–124, November–December, 2020.

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Mechnik, V.А., Kolodnitskyi, V.М., Zakiev, І.М. et al. Influence of CrB2 Powder on the Physicomechanical Properties of Fe–Cu–Ni–Sn Composites Sintered By Vacuum Hot Pressing. Mater Sci 56, 852–861 (2021). https://doi.org/10.1007/s11003-021-00504-7

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  • DOI: https://doi.org/10.1007/s11003-021-00504-7

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