| 1. |
To simplify the thermomagnetic treatment of alloys YuNDK38T8 and YuNDK40T8 it is necessary to separate the step of  nuclei formation from the stage of decomposition.
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| 2. |
Nuclei of   phase can be formed in alloys YuNDK38T8 and YuNDK40T8 without magnetic field with cooling at a rate of 125–280 deg/min in the range of 900–600°.
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| 3. |
The thermomagnetic treatment developed consists of cooling from the single-phase region to 800–600° at a rate of 125–280 deg/min and high-temperature tempering in magnetic field at 830–850° for 12 min. The thermomagnetic treatment is completed by triple tempering in the range of 650–550°.
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| 4. |
This method of TMT makes it possible to obtain high magnetic properties in alloys YuNDK38T8 and YuNDK40T8.
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