Abstract
The results of studying the properties of copper galvanic coatings fabricated using an L1-210 v2 galvanic installation (Italy) using the bright copper plating electrolyte produced by 24 Karata (Moscow) and the addition of electroerosion copper nanopowder fabricated by the electroerosion dispersion (EED) method using copper wire scrap in distilled water are given. An original setup developed by the authors (RF Patent 2449859) was used for the EED of conductors. The friction coefficient and wear factor found when testing coatings using a Tribometer automated friction machine (CSM Instruments, Switzerland) indicate the absence of substantial distinctions in the wear resistance of the samples. Surface hardness tests of the sample were performed using a DM-8 automated microhardness tester according to the micro-Vickers method with an indenter load of 25 g by ten imprints with a free selection of the indentation point according to GOST (State Standard) 9450–76. The indenter loading time was 15 s. It is established that the microhardness of a copper coating with the addition of copper nanoparticles is 15% higher than that of steel substrate and the sample with a standard copper coating.
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Original Russian Text © E.V. Ageeva, R.A. Latypov, N.M. Horyakova, E.V. Ageev, 2016, published in Izvestiya Vysshikh Uchebnykh Zavedenii, Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2016, No. 1, pp. 35–43.
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Ageeva, E.V., Latypov, R.A., Horyakova, N.M. et al. Insight into physicomechanical and tribological properties of copper galvanic coatings formed with the addition of electroerosion copper nanopowder. Russ. J. Non-ferrous Metals 58, 161–167 (2017). https://doi.org/10.3103/S106782121702002X
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DOI: https://doi.org/10.3103/S106782121702002X