Corrosion resistance of hard magnetic Sm2Fe17N3 materials is studied. It is shown that addition of cobalt (up to 8 wt.%) makes it possible to improve corrosion resistance of these materials by 20–25% without reducing their magnetic properties. It is established that additional treatment of Sm2Fe17N3 powder with organosilicon liquid GKZh 136-41 makes it possible to improve corrosion resistance by a factor of 2–3.
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The article was prepared within the scope of Subsidy Agreement No. 14.578.21.0037 of July 22, 2014 (Unique agreement identifier is RFMEFI57814X0037) between NITU MISiS and the RF Ministry of Education and Science under Federal Targeted program “Research and development for priority areas of developing the Russian scientific and technological complex for 2014–2020” confirmed by Resolution of the Russian Federal Government No. 1096 of November 28, 2013.
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Translated from Metallurg, No. 11, pp. 74–76, November, 2016.
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Tarasov, V.P., Ignatov, A.S. & Kutepov, D.A. Development of Methods to Improve Corrosion Resistance of Hard-Magnetic Sm2Fe17N3 Materials. Metallurgist 60, 1183–1185 (2017). https://doi.org/10.1007/s11015-017-0426-8
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DOI: https://doi.org/10.1007/s11015-017-0426-8