Microstructure and properties of nanocrystalline Fe-Zr-Nb-B soft magnetic alloys with low magnetostriction

Y. Q. Wu; T. Bitoh; K. Hono; A. Makino; A. Inoue

doi:10.1016/S1359-6454(01)00274-9

Microstructure and properties of nanocrystalline Fe-Zr-Nb-B soft magnetic alloys with low magnetostriction

Y. Q. Wu, T. Bitoh, K. Hono, A. Makino, A. Inoue

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

We have investigated the microstructure-property relationship of nanocrystalline Fe₈₅Zr_1.2Nb_5.8B₈ and Fe_85.5Zr₂Nb₄B_8.5 soft magnetic alloys in order to understand the origin of drastic change in the permeability regardless of the zero magnetostriction in these two alloy compositions. Plan-view and cross-section transmission electron microscopy (TEM) observations showed strongly textured α-Fe particles on the free surface of the Fe₈₅Zr_1.2Nb_5.8B₈ alloy ribbon, while uniform nanocrystalline microstructure was observed in the Fe_85.5Zr₂Nb₄B_8.5 alloy ribbon. The high Zr content of the latter improves the glass forming ability, thereby suppressing the surface crystallization, resulting in higher permeability. By adding Cu in the Fe-Zr-Nb-B alloy, uniform nanocrystalline microstructure was obtained, from which superior soft magnetic properties with zero magnetostriction was achieved.

Original language	English
Pages (from-to)	4069-4077
Number of pages	9
Journal	Acta Materialia
Volume	49
Issue number	19
DOIs	https://doi.org/10.1016/S1359-6454(01)00274-9
Publication status	Published - 2001 Nov 14
Externally published	Yes

Keywords

Amorphous materials
Atom probe
Nanocrystalline materials
Soft magnetic
Transmission electron microscopy (TEM)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

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10.1016/S1359-6454(01)00274-9

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title = "Microstructure and properties of nanocrystalline Fe-Zr-Nb-B soft magnetic alloys with low magnetostriction",

abstract = "We have investigated the microstructure-property relationship of nanocrystalline Fe85Zr1.2Nb5.8B8 and Fe85.5Zr2Nb4B8.5 soft magnetic alloys in order to understand the origin of drastic change in the permeability regardless of the zero magnetostriction in these two alloy compositions. Plan-view and cross-section transmission electron microscopy (TEM) observations showed strongly textured α-Fe particles on the free surface of the Fe85Zr1.2Nb5.8B8 alloy ribbon, while uniform nanocrystalline microstructure was observed in the Fe85.5Zr2Nb4B8.5 alloy ribbon. The high Zr content of the latter improves the glass forming ability, thereby suppressing the surface crystallization, resulting in higher permeability. By adding Cu in the Fe-Zr-Nb-B alloy, uniform nanocrystalline microstructure was obtained, from which superior soft magnetic properties with zero magnetostriction was achieved.",

keywords = "Amorphous materials, Atom probe, Nanocrystalline materials, Soft magnetic, Transmission electron microscopy (TEM)",

author = "Wu, {Y. Q.} and T. Bitoh and K. Hono and A. Makino and A. Inoue",

note = "Funding Information: This work was supported by Special Coordination Funds for Promoting Science and Technology on “Nanohetero Metallic Materials” from the Science and Technology Agency. Copyright: Copyright 2007 Elsevier B.V., All rights reserved.",

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doi = "10.1016/S1359-6454(01)00274-9",

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AU - Wu, Y. Q.

AU - Bitoh, T.

AU - Hono, K.

AU - Makino, A.

AU - Inoue, A.

N1 - Funding Information: This work was supported by Special Coordination Funds for Promoting Science and Technology on “Nanohetero Metallic Materials” from the Science and Technology Agency. Copyright: Copyright 2007 Elsevier B.V., All rights reserved.

PY - 2001/11/14

Y1 - 2001/11/14

N2 - We have investigated the microstructure-property relationship of nanocrystalline Fe85Zr1.2Nb5.8B8 and Fe85.5Zr2Nb4B8.5 soft magnetic alloys in order to understand the origin of drastic change in the permeability regardless of the zero magnetostriction in these two alloy compositions. Plan-view and cross-section transmission electron microscopy (TEM) observations showed strongly textured α-Fe particles on the free surface of the Fe85Zr1.2Nb5.8B8 alloy ribbon, while uniform nanocrystalline microstructure was observed in the Fe85.5Zr2Nb4B8.5 alloy ribbon. The high Zr content of the latter improves the glass forming ability, thereby suppressing the surface crystallization, resulting in higher permeability. By adding Cu in the Fe-Zr-Nb-B alloy, uniform nanocrystalline microstructure was obtained, from which superior soft magnetic properties with zero magnetostriction was achieved.

AB - We have investigated the microstructure-property relationship of nanocrystalline Fe85Zr1.2Nb5.8B8 and Fe85.5Zr2Nb4B8.5 soft magnetic alloys in order to understand the origin of drastic change in the permeability regardless of the zero magnetostriction in these two alloy compositions. Plan-view and cross-section transmission electron microscopy (TEM) observations showed strongly textured α-Fe particles on the free surface of the Fe85Zr1.2Nb5.8B8 alloy ribbon, while uniform nanocrystalline microstructure was observed in the Fe85.5Zr2Nb4B8.5 alloy ribbon. The high Zr content of the latter improves the glass forming ability, thereby suppressing the surface crystallization, resulting in higher permeability. By adding Cu in the Fe-Zr-Nb-B alloy, uniform nanocrystalline microstructure was obtained, from which superior soft magnetic properties with zero magnetostriction was achieved.

KW - Amorphous materials

KW - Atom probe

KW - Nanocrystalline materials

KW - Soft magnetic

KW - Transmission electron microscopy (TEM)

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Microstructure and properties of nanocrystalline Fe-Zr-Nb-B soft magnetic alloys with low magnetostriction

Abstract

Keywords

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