Magnetic hysteresis properties (residual induction Br, coercivity Hc and maximum energy product (BH )max) of Fe – 27% Cr – 10% Co (27Kh10KA) hard magnetic powder alloy are assessed after different heat treatments. Optimum modes of heat treatment are determined using TRM251 programmed derivative-proportional-integral controllers. The magnetic characteristics of the specimens exceed those of the widely used alloy 25Kh15KYuBF with a higher cobalt content. The prospects of the Fe – 27% Cr – 10% Co (27Kh10KA) powder alloy for commercial production are considered.
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Here and below in the paper the content of elements is given in weight percent.
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The work has been performed within State Order No. 007-00129-18-00 with financial support of FTsNTP-2017 by State Contract of 26.09.2017 No. 14.579.21.0149.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 17 – 21, March, 2019.
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Milyaev, I.M., Abashev, D.M., Alymov, M.I. et al. Magnetic Properties of Hard Magnetic Powder Alloy Fe – 27% Cr – 10% Co (27Kh10KA). Met Sci Heat Treat 61, 157–161 (2019). https://doi.org/10.1007/s11041-019-00392-4
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DOI: https://doi.org/10.1007/s11041-019-00392-4