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Competition driven nanocrystallization in high Bs and low coreloss Fe-Si-B-P-Cu soft magnetic alloys
被引:166
作者:
Sharma, Parmanand
[1
]
Zhang, Xin
[1
]
Zhang, Yan
[2
]
Makino, Akihiro
[1
,2
]
机构:
[1] Tohoku Univ, Res & Dev Ctr Ultra High Efficiency Nanocrystalli, Inst Mat Res, Sendai, Miyagi 980, Japan
[2] Tohoku Univ, Cooperat Res & Dev Ctr Adv Mat, Inst Mat Res, Sendai, Miyagi 980, Japan
关键词:
High B-s and low coreloss alloys;
Nanocrystallization mechanism in soft magnetic alloys;
NANOMET alloys;
Competition driven nanocrystallization;
METALLIC GLASSES;
NB ALLOYS;
CRYSTALLIZATION;
HF;
M=ZR;
D O I:
10.1016/j.scriptamat.2014.08.023
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Based on experimental results and Johnson-Mehl-Avrami analysis, we have identified the nanocrystallization mechanism of newly developed Ferich Fe-Si-B-P-Cu soft magnetic alloys. Competition for growth among a large number of nuclei that are present in as-quenched state (grain density similar to 3 x 10(21) m(-3)) and nucleated after annealing above the critical temperature for new nucleation (grain density similar to 8 x 10(22) m(-3)) governs the grain size. A model of nanocrystallization is made to predict the magnetic/structural properties. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码:3 / 6
页数:4
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