FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, in particular to the heat treatment of magnetically hard alloys of an iron-chrome-cobalt system used for the manufacture of permanent magnets. The method of heat treatment of the magnetically hard alloys of the iron-chrome-cobalt system with the cobalt content of 8 wt % comprises homogenisation, training, thermomagnetic treatment with the subsequent multistage tempering, at the last step tempering is performed at the temperature of 420°C.
EFFECT: values of magnetic hysteresis properties, including coercive force HcB and the maximum energy product (VN)max are increased.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR HEAT TREATMENT OF POWDERED MAGNETIC HARD ALLOY Fe-30Cr-16Co-0.5Sm | 2022 |
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