Synthesis of 25Kh15K Permanent Magnets and Study of Their Properties in Service in Magnetic and Thermal Fields

• Published in: Metal science and heat treatment Vol. 65; no. 5-6; pp. 298 - 303
• Main Authors: Zhukov, A. S., Bobyr’, V. V., Shakirov, I. V., Olisov, A. V., Barakhtin, B. K., Sein, V. A.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2023; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Diameters; Engineering Thermodynamics; Fractal analysis; Functional Alloys; Heat and Mass Transfer; Laser beam melting; Magnetic alloys; Magnetic properties; Materials Science; Metallic Materials; Permanent magnets; Spraying; metallic powder; hard magnetic alloy 25Kh15KA; selective laser melting; magnet
• ISSN: 0026-0673; 1573-8973
• DOI: 10.1007/s11041-023-00929-8

The possibility of applying additive technology of selective laser melting for preparing specimens from hard magnetic alloy 25Kh15KA is considered. Melt spraying is used to prepare initial powders for melting with a good yield and adaptability to additive manufacturing. Experimental cylindrical samples with a size of ∅10 × 12 mm and ring magnets with an outer diameter of 46 mm, an inner diameter of 37.8 mm, and a height of 6 mm, are prepared. Microstructures of the specimens are studied and magnetic parameters are measured. Conformity of the properties of magnets produced by additive technology and cast magnets is demonstrated. A novel method of structure multifractal analysis is used to show that synthesized magnets are resistant to external effects.