Effect of W Addition on Fe-P-C-B Soft-Magnetic Amorphous Alloy

Sun, Cheng; Hong, Xu; Yang, Meng; Wang, Xinchao; Han, Minhao; Qiao, Boying; Wang, Yalong; Zhang, Tao

doi:10.3390/ma15238416

Cited by 2 publications

(2 citation statements)

References 45 publications

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“…As it is known, the dense atomic packing and lack of periodicity in icosahedral structures impede crystallization nucleation, thereby significantly enhancing the GFA of all alloys. [47,48] According to the results of bond pair analysis, the proportion of bond pairs representing icosahedral structure shows an increasing trend with the increase in Y content, reaching 58.6%, 67.3%, and 71.2% for Y 0 , Y 5 , and Y 10 alloys respectively. On the contrary, there is a gradual decrease in the proportion of bond pairs representing bcc structure to 24.6%, 18.3%, and 17.4% for Y 0 , Y 5 , and Y 10 alloys respectively.…”

Section: Cu Kαmentioning

confidence: 99%

Effect of Y element on atomic structure, glass forming ability, and magnetic properties of FeBC alloy

Xiao 肖,

Ding 丁,

Li 李

et al. 2024

Chinese Phys. B

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The atomic structure of amorphous alloys plays a crucial role in determining both their glassforming ability and magnetic properties. In this study, we investigate the influence of adding the Y element on the glass-forming ability and magnetic properties of Fe86-xYxB7C7 (x=0, 5, 10 at.%) amorphous alloys via both experiments and ab initio molecular dynamics simulations. Furthermore, we explore the correlation between local atomic structures and properties. Our results demonstrate that an increased Y content in the alloys leads to a higher proportion of icosahedral clusters, which can potentially enhance both glass-forming ability and thermal stability. These findings have been experimentally validated. The analysis of the electron energy density and magnetic moment of the alloy reveals that the addition of Y leads to hybridization between Y-4d and Fe-3d orbitals, resulting in a reduction in ferromagnetic coupling between Fe atoms. This subsequently reduces the magnetic moment of Fe atoms as well as the total magnetic moment of the system, which is consistent with experimental results. The results could help understand the relationship between atomic structure and magnetic property, and providing valuable insights for enhancing the performance of metallic glasses in industrial applications.

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Section: Cu Kαmentioning

confidence: 99%

Effect of Y element on atomic structure, glass forming ability, and magnetic properties of FeBC alloy

Xiao 肖,

Ding 丁,

Li 李

et al. 2024

Chinese Phys. B

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“…Amorphous alloys (AAs) have the advantage of low core loss [ 1 , 2 ], which can replace traditional silicon steel sheets in high-frequency transformers and high-speed motor cores designed for high power density applications [ 3 , 4 ]. The process of manufacturing an iron core from AA ribbons is in the order of fragmentation, lamination, annealing, clamping, curing and cutting.…”

Section: Introductionmentioning

confidence: 99%

Research on Deterioration Mechanism and High-Precision Modelling of the Core Loss for Amorphous Alloys after Wire-Cut Electric Discharge Machining

et al. 2023

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Amorphous alloys (AAs) have the advantage of low core loss. Thus, they can be used in high-speed motor applications. However, compared with the nominal performances, the performance of the wire-cut electric discharge machine (W-EDM)-processed AA iron core changes significantly, which limits its popularization. This paper focuses on the performance degradation mechanism of the AA ribbon caused by W-EDM and establishes a modified core loss model after machining. First, a 308 × 15 mm ribbon-shaped AA sample machined by W-EDM was prepared. The characterization and analysis of the magnetic properties, phase, magnetic domain, nano-indentation, micro-morphology, and composition were carried out. In this paper, by analysing the variation in the magnetic domain distribution based on domain width and nano-mechanical properties, it is proposed that the performance degradation range of AA ribbons processed by W-EDM is within 1 mm from the edge. By comparing the microscopic morphology and chemical composition changes in the affected and the unaffected area, this paper presents a mechanism for the property deterioration of W-EDM-processed AA ribbons based on electrochemical corrosion. Finally, a modified loss model for W-EDM-processed AAs is established based on the division of the affected area. This model can significantly improve the accuracy of core loss estimation in the medium- and high-frequency bands commonly used in high-speed motors.

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Effect of W Addition on Fe-P-C-B Soft-Magnetic Amorphous Alloy

Cited by 2 publications

References 45 publications

Effect of Y element on atomic structure, glass forming ability, and magnetic properties of FeBC alloy

Effect of Y element on atomic structure, glass forming ability, and magnetic properties of FeBC alloy

Research on Deterioration Mechanism and High-Precision Modelling of the Core Loss for Amorphous Alloys after Wire-Cut Electric Discharge Machining

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