2020 №10 (03) DOI of Article
2020 №10 (05)

The Paton Welding Journal 2020 #10
TPWJ, 2020, #10, 19-22 pages

Development of technologies and materials for electrospark coating with the aim of increasing the service life and reliability of parts of technological and power equipment and tools

M.S. Storozhenko, O.P. Umansky, V.E. Sheludko, Yu.V. Gubin and T.V. Kurinna
Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine 3 Krzhyzhanovsky Str., 03150, Kyiv, Ukraine. E-mail:storozhenko@ukr.net

It was established that the technology of electrospark alloying is a promising method of strengthening and restoration of parts of technological and power equipment: shafts of pumps and electric motors, impellers, pump casings, centrifuges, etc. To increase the efficiency of the proposed technology, a number of electrode materials were created, such as FeNiSi–Cr3C5, WC–TiC–Mo2C–Co–Cr and WC–TiC–Co–Cr–Ni–Al, TiC–(Fe–Cr‒Si–Al), NiCrBCuC–WC, FeNiCrBSiC–TiB2 and FeNiCrBSiC–CrB2, which were tested at industrial enterprises of Ukraine. It was revealed that application of the developed electrodes provides a simultaneous increase in the manufacturability of the process of electrospark alloying with an extension of the life of parts of technological equipment by 2.0–2.5 times. 10 Ref., 4 Figures.
Keywords: electrospark hardening, coating, wear resistance, self-fluxing alloy, titanium diboride

Received 28.09.2020


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