On the nanostructural formation process in Fe-M-B (M=Zr or Nb) soft magnetic alloys

K. Suzuki; J. M. Cadogan; V. Sahajwalla; A. Inoue; T. Masumoto

On the nanostructural formation process in Fe-M-B (M=Zr or Nb) soft magnetic alloys

K. Suzuki, J. M. Cadogan, V. Sahajwalla, A. Inoue, T. Masumoto

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

Abstract

The nano-structural formation kinetics in soft magnetic Fe₉₀Zr₇B₃ and Fe₈₀Nb₆B₁₄ alloys have been investigated. The nanocrystallite formation in the Fe-Zr-B alloy is governed mostly by a nucleation-and-growth mechanism. On the other hand, the nano-structural formation mechanism in the Fe-Nb-B alloy shows a change in the fraction transformed range 0.1-0.2. The first- and second-stage nano-structural formation processes have been described by the nucleation-and-growth model with an Avrami exponent ∼1.5 and the grain-growth model with a grain-growth exponent of 1.5-3, respectively. This two-stage nature in the nano-structural formation kinetics can be attributed to a high population density of the primary bcc nuclei.

Original language	English
Pages (from-to)	765-770
Number of pages	6
Journal	Materials Science Forum
Volume	235-238
Issue number	PART 2
Publication status	Published - 1 Dec 1997
Externally published	Yes

Keywords

Crystallization
Fe-Nb-B
Fe-Zr-B
Grain Growth
Nanocrystalline Soft Magnetic Alloys

Cite this

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title = "On the nanostructural formation process in Fe-M-B (M=Zr or Nb) soft magnetic alloys",

abstract = "The nano-structural formation kinetics in soft magnetic Fe90Zr7B3 and Fe80Nb6B14 alloys have been investigated. The nanocrystallite formation in the Fe-Zr-B alloy is governed mostly by a nucleation-and-growth mechanism. On the other hand, the nano-structural formation mechanism in the Fe-Nb-B alloy shows a change in the fraction transformed range 0.1-0.2. The first- and second-stage nano-structural formation processes have been described by the nucleation-and-growth model with an Avrami exponent ∼1.5 and the grain-growth model with a grain-growth exponent of 1.5-3, respectively. This two-stage nature in the nano-structural formation kinetics can be attributed to a high population density of the primary bcc nuclei.",

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T1 - On the nanostructural formation process in Fe-M-B (M=Zr or Nb) soft magnetic alloys

AU - Suzuki, K.

AU - Cadogan, J. M.

AU - Sahajwalla, V.

AU - Inoue, A.

AU - Masumoto, T.

PY - 1997/12/1

Y1 - 1997/12/1

N2 - The nano-structural formation kinetics in soft magnetic Fe90Zr7B3 and Fe80Nb6B14 alloys have been investigated. The nanocrystallite formation in the Fe-Zr-B alloy is governed mostly by a nucleation-and-growth mechanism. On the other hand, the nano-structural formation mechanism in the Fe-Nb-B alloy shows a change in the fraction transformed range 0.1-0.2. The first- and second-stage nano-structural formation processes have been described by the nucleation-and-growth model with an Avrami exponent ∼1.5 and the grain-growth model with a grain-growth exponent of 1.5-3, respectively. This two-stage nature in the nano-structural formation kinetics can be attributed to a high population density of the primary bcc nuclei.

AB - The nano-structural formation kinetics in soft magnetic Fe90Zr7B3 and Fe80Nb6B14 alloys have been investigated. The nanocrystallite formation in the Fe-Zr-B alloy is governed mostly by a nucleation-and-growth mechanism. On the other hand, the nano-structural formation mechanism in the Fe-Nb-B alloy shows a change in the fraction transformed range 0.1-0.2. The first- and second-stage nano-structural formation processes have been described by the nucleation-and-growth model with an Avrami exponent ∼1.5 and the grain-growth model with a grain-growth exponent of 1.5-3, respectively. This two-stage nature in the nano-structural formation kinetics can be attributed to a high population density of the primary bcc nuclei.

KW - Crystallization

KW - Fe-Nb-B

KW - Fe-Zr-B

KW - Grain Growth

KW - Nanocrystalline Soft Magnetic Alloys

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JO - Materials Science Forum

JF - Materials Science Forum

IS - PART 2

ER -

On the nanostructural formation process in Fe-M-B (M=Zr or Nb) soft magnetic alloys

Abstract

Keywords

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