Improving the corrosion resistance of REM–Fe–B magnets

Gorlov D.S., Cherednichenko I.V., Valeev R.A., Chesnokov D.V.
UDC
21.318.2
DOI
10.18577/2307-6046-2021-0-10-97-107
Article PDF (Russian) (994.19 KB)
How to cite
Gorlov D.S., Cherednichenko I.V., Valeev R.A., Chesnokov D.V. Improving the corrosion resistance of REM–Fe–B magnets // Proceedings of VIAM. 2021. No. 10. DOI: 10.18577/2307-6046-2021-0-10-97-107. URL: https://test.viam.ru/en/journal/2021/10/10
Keywords
magnets of the REM–Fe–B system, electroplating of the Ni–Cu–Ni system, ion-plasma coating of the SDP-1T + VSDP-13 system, corrosion resistance, accelerated cyclic corrosion tests, tread protection, anode effect, MAP-3 vacuum arc installat
Abstract

The article presents the results of work on improving the corrosion resistance of magnets of the REM–Fe–B system manufactured in China, by applying an ion-plasma coating of the SDP-1T + VSDP-13 system on an industrial vacuum-arc installation MAP-3. A comparative assessment of the tread protection of the vacuum-arc coating of the SP-1T + VSP-13 system was carried out with an already applied Ni–Cu–Ni coating under conditions of accelerated cyclic corrosion tests at a temperature of 300 °C. The coating of the SDP-1T + VSDP-13 system, applied in the FSUE «VIAM», creates a much more resistant protection of the magnets of the REM–Fe–B system from corrosion compared to the electroplating of the Ni–Cu–Ni system, manufactured in China.

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