Novel FePCB nanocrystalline alloys induced by indium microalloying

Article Chemistry, Multidisciplinary

Exceptionally High Saturation Magnetic Flux Density and Ultralow Coercivity via an Amorphous-Nanocrystalline Transitional Microstructure in an FeCo-Based Alloy

Xuesong Li et al.

Summary: This study achieves excellent comprehensive soft magnetic properties with high saturation magnetic flux density and low coercivity through the construction of a transitional microstructure in an FeCo-based alloy.

ADVANCED MATERIALS (2022)

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Article Materials Science, Multidisciplinary

Magnetic softening of the Fe83Si3B11P2Cu1 amorphous/nanocrystalline alloys with large-size pre-existing α-Fe grains by high heating-rate annealing

Yang Meng et al.

Summary: The microstructure and soft magnetic properties of Fe83Si3B11P2Cu1 (at.%) nanocrystalline ribbons with different thicknesses were investigated. Thicker ribbons contained more and coarser α-Fe grains. Rapid annealing of the relatively thick amorphous/nanocrystalline precursors resulted in nanocrystalline alloys with low coercivity and high saturation magnetization, similar to those obtained by annealing amorphous precursors. The rapid annealing effectively suppressed the coarsening of large-sized α-Fe grains and facilitated the formation of fine and uniform nanostructure.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2022)

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Article Chemistry, Physical

Synthesis and characterisation of amorphous Fe38.5Co38.5Nb7B15Cu1 powders via mechanosynthesis using industrial raw materials

Ana Cotai et al.

Summary: This study compares HITPERM type alloys prepared by wet and dry mechanical alloying, finding that amorphization occurred after 40 hours of milling in wet conditions, but not after 100 hours in dry conditions. Various analyses were performed to investigate the thermal stability and crystallization kinetics of the amorphous powders.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Chemistry, Physical

Heating rate dependence of coercivity and microstructure of Fe-B-P-Cu nanocrystalline soft magnetic materials

Yohei Nomura et al.

Summary: The nanocrystalline structure and soft magnetic properties of melt-spun Fe-B-P-Cu ribbons are greatly influenced by the heating rates during crystallization of amorphous precursors. Higher heating rates lead to larger size and higher Cu concentration of the Cu clusters in both P-rich and B-rich ribbons. Solute partitioning behaviors between alpha-Fe and residual amorphous phase are consistent with the Fe-P-B ternary phase diagram, with P segregating at the amorphous/alpha-Fe interface during crystallization.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Chemistry, Physical

Enlarging heat-treatment processing windows of Fe-Si-B-P-Cu-M nanocrystalline alloys by doping transition metal elements

Chuntao Chang et al.

Summary: The addition of Ta and Nb elements can effectively improve the soft-magnetic properties of Fe-Si-B-P-Cu alloys, making the heat treatment range of the alloy wider. Nb and Ta doping is most beneficial for stabilizing and refining the nanocrystalline structure of the alloy, which has a significant impact on the heat treatment conditions of the alloy.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Review Biochemistry & Molecular Biology