Soft Magnetic Properties of Ring-Shaped Fe-Co-B-Si-Nb Bulk Metallic Glasses

Ishikawa, Takayuki; Tsubota, Takuya; Bitoh, Teruo

doi:10.4283/jmag.2011.16.4.431

Cited by 9 publications

(2 citation statements)

References 16 publications

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“…Therefore, there is a possibility to improve the saturation magnetization of Fe-based BMGs. We reported that the (Fe 0.8 Co 0.2 ) 76 B 18 Si 3 Nb 3 BMG shows the high saturation magnetization of 1.35 T as well as the sufficiently large GFA to produce the 0.5 mm thick specimens 8) .…”

Section: However One Of the Disadvantages Of The Fe-based Soft Magneticmentioning

confidence: 91%

Glass-Forming Ability and Magnetization of (Fe, Co)-B-Si-(Nb, RE) (RE = Nd, Sm, Dy) Amorphous Alloys

Moriya

Bitoh

2018

J. Jpn. Soc. Powder Powder Metallurgy

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The effect of the replacement of Nb by rare earth elements (RE = Nd, Sm or Dy) on glass-forming ability (GFA) and the magnetization of (Fe 1−y Co y ) 79 B 17 Si 1 Nb 3−x RE x (y = 0, 0.2, 0.4) alloys has been investigated. The RE-free melt-spun alloys do not show a glass transition and could not be obtained a single amorphous structure. On the contrary, the glass transition was confirmed in some Dy-contained alloys, and the alloys with the single amorphous phase have been obtained. In the alloys in which Nb is substituted with Sm, the alloys with a single amorphous phase were obtained. However, there is only one composition (y = 0 and 3 at% Sm) showing the glass transition. On the other hand, some Nd-contained alloys also exhibit the glass transition; however, the specimen with the single amorphous structure has not been obtained. These results indicate that the substitution of Dy is most effective to improve GFA. When Nb is substituted with Nd or Sm, the mass magnetization (σ s ) tends to increase. On the other hand, the substitution with Dy obviously reduces σ s . These are due to the magnetic coupling properties between (Fe, Co) and RE elements. KEY WORDSamorphous magnetic alloy, soft magnetic material, iron-based alloy, glass-forming ability, high magnetization

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Section: However One Of the Disadvantages Of The Fe-based Soft Magneticmentioning

confidence: 91%

Glass-Forming Ability and Magnetization of (Fe, Co)-B-Si-(Nb, RE) (RE = Nd, Sm, Dy) Amorphous Alloys

Moriya

Bitoh

2018

J. Jpn. Soc. Powder Powder Metallurgy

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“…Recently, we reported that the effect of replacement of Nb by Y on GFA and the magnetic properties of the (Fe0.8Co0.2)96−xBySi1Nb3−xYx (y = 15, 17) alloys [5], which is close to the limit of the amorphous formation [6]. The results obtained in the study indicate that the partial replacement of Nb by Y in the Fe-Co-B-Si-Nb alloys is useful to simultaneous achievement of high GFA, high magnetization, and good soft magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Yttrium Addition on Glass-Forming Ability and Magnetic Properties of Fe–Co–B–Si–Nb Bulk Metallic Glass

Bitoh

Watanabe

2015

Metals

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Abstract:The glass-forming ability (GFA) and the magnetic properties of the [(Fe0.5Co0.5)0.75B0.20Si0.05]96Nb4−xYx bulk metallic glasses (BMGs) have been studied. The partial replacement of Nb by Y improves the thermal stability of the glass against crystallization. The saturation mass magnetization (σs) exhibits a maximum around 2 at. % Y, and the value of σs of the alloy with 2 at. % Y is 6.5% larger than that of the Y-free alloy. The coercivity shows a tendency to decrease with increasing Y content. These results indicate that the partial replacement of Nb by Y in the Fe-Co-B-Si-Nb BMGs is useful to simultaneous achievement of high GFA, high σs, and good soft magnetic properties.

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Fe-based bulk metallic glasses: Glass formation, fabrication, properties and applications

Wang

et al. 2019

Progress in Materials Science

397

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Soft Magnetic Properties of Ring-Shaped Fe-Co-B-Si-Nb Bulk Metallic Glasses

Cited by 9 publications

References 16 publications

Glass-Forming Ability and Magnetization of (Fe, Co)-B-Si-(Nb, RE) (RE = Nd, Sm, Dy) Amorphous Alloys

Glass-Forming Ability and Magnetization of (Fe, Co)-B-Si-(Nb, RE) (RE = Nd, Sm, Dy) Amorphous Alloys

Effect of Yttrium Addition on Glass-Forming Ability and Magnetic Properties of Fe–Co–B–Si–Nb Bulk Metallic Glass

Fe-based bulk metallic glasses: Glass formation, fabrication, properties and applications

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