Effect of heating rate during primary crystallization on soft magnetic properties of melt-spun Fe-B alloys

SCRIPTA MATERIALIA

卷:132

Article

Zang, B.¹  Parsons, R.¹  Onodera, K.²  Kishimoto, H.²  Kato, A.²  Liu, A. C. Y.^3,4  Suzuki, K.¹ 

[1] Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia

[2] Toyota Motor Co Ltd, Mishu Ku, Shizuoka 4101193, Japan

[3] Monash Univ, Monash Ctr Electron Microscopy, Clayton, Vic 3800, Australia

[4] Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia

关键词: Nucleation;    Glass transition;    Random anisotropy;    Coerdvity;    Grain size;   

DOI  :  10.1016/j.scriptamat.2017.01.030

来源: Elsevier

【 摘 要 】

The structural and magnetic properties of amorphous Fe-87 - yB13Cuy (y = 0 to 1.5) annealed with a range of heating rates (a) up to 150 K/s were investigated. The lowest coercivity (H-c) for Fe87B13 after crystallization shows a dramatic decrease from 174 A/m to 6.7 A/m when a is increased from 1.7 K/s to 150 K/s. The coercivity of Fe-87 - yB13Cuy annealed at 150 K/s is reduced by Cu addition and H-c = 3.0 A/m is obtained at y = 1.5. Nano structures with a grain size of 15 to 20 nm were evident in transmission electron micrographs from these rapidly annealed alloys. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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