Fabrication of Granulate from a Fe – Cr – Co Alloy with Reduced Cobalt Content for Synthesizing Permanent Magnets by the MIM Process

The possibility of fabrication of granulate based on an alloy of the Fe – Cr – Co system with reduced (7 – 10%) cobalt content for synthesizing permanent magnets by the MIM process is considered. A multicomponent granulate composition (polyformaldehyde, high-pressure polyethylene, stearic acid, bees...

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Bibliographic Details
Published in:Metal science and heat treatment 2020-11, Vol.62 (7-8), p.513-517
Main Authors: Gavrikov, I. S., Chernyshev, B. D., Kamynin, A. V., Everstov, A. A., Belonozhkin, B. Yu, Kraposhin, V. S.
Format: Article
Language:English
Subjects:
Alloys
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Cobalt
Engineering Thermodynamics
Heat and Mass Transfer
Magnets, Permanent
Materials Science
Metallic Materials
Powders
Specialty metals industry
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Summary:The possibility of fabrication of granulate based on an alloy of the Fe – Cr – Co system with reduced (7 – 10%) cobalt content for synthesizing permanent magnets by the MIM process is considered. A multicomponent granulate composition (polyformaldehyde, high-pressure polyethylene, stearic acid, beeswax) of spherical powders of the Fe – Cr – Co alloy with reduced cobalt content is produced by gas sputtering (average particle diameter 4.2 μm, degree of polydispersity 0.75). The microstructure of the granulate and its granulometric composition are studied. The characteristics of the granulate (the mean diameter of the particles, their morphology and degree of polydispersity) exceed qualitatively the characteristics of the Catamold 42CrMo4 high-quality granulate produced by the BAFS Company.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-020-00594-1