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Soft magnetic Co-based Co-Fe-B-Si-P bulk metallic glasses with high saturation magnetic flux density of over 1.2 T
Huang, Dawei; Li, Yanhui; Yang, Yaping; Zhu, Zhengwang; Zhang, Wei
2020-11-30
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
Volume843
AbstractCo-based (Co, Fe)(75)B15Si7P3 bulk metallic glasses (BMGs) without any early transition metal or rare-earth elements have been successfully developed, which possess outstanding soft magnetic properties with high saturation magnetic flux density (B-s) and good mechanical properties. Addition of an appropriate amount of P into a ComBisSilo alloy promotes the occurrence of glass transition and increases the stability of the supercooled liquid, and a Co75B15Si7P3 metallic glass exhibits a large supercooled liquid region of 33 K. Subsequent replacement of Co by 15-35 at.% Fe enhances the glass-forming ability (GFA) of the Co75B15Si7P3 alloy, and the BMG rods with diameters up to 2.0 mm are obtained. The improved GFA might be originated from the high thermal stability of the alloy melts as indicated from the large undercoolings. The Co-based (Co, Fe)(75)B15Si7P3 BMGs possess low coercivity of 0.8-4.6 A/m, high B, of 1.02-1.24 T, effective permeability of 12700-18500 at 1 kHz, and Curie temperature of 739-789 K, indicating superior soft magnetic properties compared to other reported Co-based BMGs. The BMGs also exhibit high compressive yield strength of 3343-3590 MPa with distinct plastic strain up to 2.7% and high Vickers hardness of 1150-1175. The combination of high GFA and excellent soft magnetic and mechanical properties makes the Co-based BMGs a good prospect of functional materials. (C) 2020 Published by Elsevier B.V.
DOI10.1016/j.jallcom.2020.154862
WOS IDWOS:000556137400009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82337
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Huang, Dawei,Li, Yanhui,Yang, Yaping,et al. Soft magnetic Co-based Co-Fe-B-Si-P bulk metallic glasses with high saturation magnetic flux density of over 1.2 T[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,843.
APA Huang, Dawei,Li, Yanhui,Yang, Yaping,Zhu, Zhengwang,&Zhang, Wei.(2020).Soft magnetic Co-based Co-Fe-B-Si-P bulk metallic glasses with high saturation magnetic flux density of over 1.2 T.JOURNAL OF ALLOYS AND COMPOUNDS,843.
MLA Huang, Dawei,et al."Soft magnetic Co-based Co-Fe-B-Si-P bulk metallic glasses with high saturation magnetic flux density of over 1.2 T".JOURNAL OF ALLOYS AND COMPOUNDS 843(2020).
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