Selective laser melting of Nd-Fe-B: Single track study

Pelevin, Ivan A.; Ozherelkov, Dmitriy Yu.; Chernyshikhin, Stanislav V.; Nalivaiko, Anton Yu.; Gromov, Alexander A.; Chzhan, V. B.; Terekhin, E.A.; Терешина, И. С.

doi:10.1016/j.matlet.2022.131947

Cited by 11 publications

(5 citation statements)

References 5 publications

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“…This arises due to both insufficient injected radiation energy causing lack-of-fusion zones and excessive energy leading to intense metal evaporation in the laser beam zone. By varying laser power and scanning speed using L-PBF technology, the authors [64] identified optimal modes to ensure the stability of the Nd-Fe-B-based alloy melting pro-cess and obtain high-quality fused track for competitive permanent magnet fabrication.…”

Section: Hard Magnetic Materials Hard Magnetic Materialsmentioning

confidence: 99%

Exploring 3D printing with magnetic materials: Types, applications, progress, and challenges

Konov,

Mazeeva,

Masaylo

et al. 2024

Izv. VUZ. Poroshk. Met.

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3D printing, also known as additive manufacturing (AM), represents a rapidly evolving technological field capable of creating distinctive products with nearly any irregular shape, often unattainable using traditional techniques. Currently, the focus in 3D printing extends beyond polymer and metal structural materials, garnering increased attention towards functional materials. This review conducts an analysis of published data concerning the 3D printing of magnetic materials. The paper provides a concise overview of key AM technologies, encompassing vat photopolymerization, selective laser sintering, binder jetting, fused deposition modeling, direct ink writing, electron beam melting, directed energy deposition and laser powder bed fusion. Additionally, it covers magnetic materials currently utilized in AM, including hard magnetic Nd–Fe–B and Sm–Co alloys, hard and soft magnetic ferrites, and soft magnetic alloys such as permalloys and electrical steels. Presently, materials produced through 3D printing exhibit properties that often fall short compared to their counterparts fabricated using conventional methods. However, the distinct advantages of 3D printing, such as the fabrication of intricately shaped individual parts and reduced material wastage, are noteworthy. Efforts are underway to enhance the material properties. In specific instances, such as the application of metal-polymer composites, the magnetic properties of 3D-printed products generally align with those of traditional analogs. The review further delves into the primary fields where 3D printing of magnetic products finds application. Notably, it highlights promising areas, including the production of responsive soft robots with increased freedom of movement and magnets featuring optimized topology for generating highly homogeneous magnetic fields. Furthermore, the paper addresses the key challenges associated with 3D printing of magnetic products, offering potential approaches to mitigate them.

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Section: Hard Magnetic Materials Hard Magnetic Materialsmentioning

confidence: 99%

Exploring 3D printing with magnetic materials: Types, applications, progress, and challenges

Konov,

Mazeeva,

Masaylo

et al. 2024

Izv. VUZ. Poroshk. Met.

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“…Compared to other techniques, it is a simple, fast, and efficient method that enables powder saving and recycling, as well as precise surface modification. Moreover, laser cladding gives the possibility to obtain desired nanostructures while maintaining small dilution zone and heat affected area [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Commercial-Scale Modification of NdFeB Magnets under Laser-Assisted Conditions

Radwan-Pragłowska,

Łysiak

et al. 2024

Nanomaterials

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Rare Earth elements (REE) such as NdFeB are commonly used to produce permanent magnets. Thanks to their superior properties, these materials are highly desirable for green energy applications such as wind power generators or electric cars. Currently, REEs are critical for the ongoing development of eco-friendly solutions in different industrial branches. The emerging issue of REE depletion has led to a need for new methods to enable the life cycle elongation, resistance to wear, and external factors improvement of NdFeB magnets. This can be achieved by advanced, nanostructured coating formation of magnet surfaces to increase their functionality and protect from humidity, pressure, temperature, and other factors. The aim of the following research was to develop a new, scalable strategy for the modification of NdFeB magnets using laser-assisted technique, also known as Laser cladding. For this purpose, four different micropowders were used to modify commercial NdFeB samples. The products were investigated for their morphology, structure, chemical composition, and crystallography. Moreover, magnetic flux density was evaluated. Our results showed that laser cladding constitutes a promising strategy for REE-based permanent magnets modification and regeneration and may help to improve durability and resistance of NdFeB components.

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“…Moreover, the magnetic properties of the obtained samples demonstrated the great potential of such an approach. It should be noted that the field was developed largely due to the appearance of a suitable raw powder-MQP-S-11-9-20001 grade by Magnequench [21] with sphericalshaped particles and low narrow particle size distribution providing good flowability and tap density [22], which are essential for the LPBF process. Few further scientific groups became involved in the research topic [23][24][25][26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…For this purpose, MQP-S spherical powder was chosen as the most convenient, predictable, and reproducible material with high processability for LPBF. The current study is the development of the research described in [22], which was focused on single-track synthesis. The double-exposure scanning strategy was used for the first time and applied to Nd-Fe-B-based materials, allowing a significant increase in the material density.…”

Section: Introductionmentioning

confidence: 99%

New Scanning Strategy Approach for Laser Powder Bed Fusion of Nd-Fe-B Hard Magnetic Material

Pelevin

Terekhin

Ozherelkov

et al. 2023

Metals

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Volumetric cubic and cylindrical samples from MQP-S Nd-Fe-B-type material were 3D-printed using the LPBF technique. Two different scanning strategies were used: the convenient single laser exposure scanning strategy and the newly proposed double scanning strategy aimed at improving the melting process and increasing the density of the synthesized material. Samples with a relative density value higher than 95% were obtained using the new scanning strategy by reducing void volume and cracks. This was achieved by decreasing internal stresses and reducing the tendency to form and propagate cracks. The double scanning strategy of half laser power followed by full power exposure provides higher magnetic properties (both coercive force and remanence). The coercive force increases with energy input decrease, while remanence has inverse dependence.

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Selective laser melting of Nd-Fe-B: Single track study

Cited by 11 publications

References 5 publications

Exploring 3D printing with magnetic materials: Types, applications, progress, and challenges

Exploring 3D printing with magnetic materials: Types, applications, progress, and challenges

Commercial-Scale Modification of NdFeB Magnets under Laser-Assisted Conditions

New Scanning Strategy Approach for Laser Powder Bed Fusion of Nd-Fe-B Hard Magnetic Material

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