Thermal stability, dynamic mechanical analysis and nanoindentation behavior of FeSiB(Cu) amorphous alloys

Lashgari, H.R.; Chen, Zibin; Liao, Xiaozhou; Chu, Dewei; Ferry, M.; Li, S.

doi:10.1016/j.msea.2014.12.097

Cited by 49 publications

(10 citation statements)

References 42 publications

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“…On the one hand, higher activation energy for alloys with higher Nb content means better amorphous forming ability which can be attributed to a higher energy barrier for the crystallization process. 24 On the other hand, the increased crystallization activation energy of a-Fe will lead to lower grain growth rates and a finer nanocrystallization structure. Moreover, for Nb-added alloys, the larger crystallization activation energy of the second crystallization phase compared with that of the a-Fe soft magnetic phase guarantees the wide annealing temperature region.…”

Section: Resultsmentioning

confidence: 99%

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Wan

Zhang

et al. 2016

Journal of Elec Materi

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In order to develop Fe-based nanocrystalline soft magnetic alloys with high saturation magnetic flux density (B s ) and good manufacturability, the effect of the Nb content on the thermal stability, microstructural evolution and soft magnetic properties of Fe 78Àx Si 13 B 8 Nb x Cu 1 (x = 0, 1, 2 and 3) alloys were investigated. It is found that proper Nb addition is effective in widening the optimum annealing temperature range and refining the a-Fe grain in addition to enhancing the soft magnetic properties. For the representative Fe 76 Si 13 B 8 Nb 2 Cu 1 alloy, the effective annealing time can be over 60 min in the optimal temperature range of 500-600°C. FeSiBNbCu nanocrystalline soft magnetic alloys with desirable soft magnetic properties including high B s of 1.39 T, low coercivity (H c ) of 1.5 A/m and high effective permeability (l e ) of 21,500 at 1 kHz have been developed. The enhanced soft magnetic performance and manufacturability of the FeSiBNbCu nanocrystalline alloys are attributed to the high activated energy for the precipitation of a-Fe(Si) and the second phase. These alloys with excellent performance have promising applications in electromagnetic fields like inductors.

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Section: Resultsmentioning

confidence: 99%

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Wan

Zhang

et al. 2016

Journal of Elec Materi

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“…This result indicates that the addition of Al greatly increases the activation energies of crystallization in S4 amorphous ribbon. Higher activation energy for alloys with higher Al content means better GFA since in these alloy the crystallization process is required to overcome a M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT higher energy barrier [21] . Compared with S1, for S4 alloy activation energies of α-Fe and Fe-P have increased 19.3% and 42.4%, respectively.…”

Section: Resultsmentioning

confidence: 99%

Effect of Al addition on the glass forming ability, thermal stability and soft magnetic properties of (Fe0.83P0.16Cu0.01)100−xAlx nanocrystalline alloys

Zhu

Wang

2015

Journal of Alloys and Compounds

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“…addition of Nb increases the entropy of the alloy system, which may be beneficial to forming an amorphous alloy. The second onset temperature (T x2 ) corresponds to the forming of FeB/FeP compounds [22] clearly increases with the addition of Nb. Elements with larger negative entropies are well known to tend to combine, and B/P prefers to combining with Nb instead of Fe in the residual amorphous matrix because of the large mixing enthalpies between Nb-P and Nb-B [23].…”

Section: Resultsmentioning

confidence: 99%

Effects of Nb Addition and Heat Treatment on the Crystallization Behavior, Thermal Stability and Soft Magnetic Properties of FeSiBPCuC Alloys

Fan¹,

Yang²,

Xu³

et al. 2020

J. Korean Phys. Soc.

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In this paper, the effect of the replacement of Fe by Nb on the glass forming ability (GFA), the thermal stability and the crystallization behavior of Fe84.5−xSi0.5B10.5P3.5Cu0.7C0.3Nbx (x = 0, 1, 2) alloys were investigated. The results show that the addition of Nb increases the GFA. Increasing Nb content can enhance the first onset crystallization temperature (Tx1), the second onset crystallization temperature (Tx2) and ΔTx (ΔTx = Tx2 − Tx1), which broadens the range of annealing temperatures. The coercivity (Hc) of ribbons decreases with increasing Nb content after annealing at a low heating rate and reach as a minimum of 24.5 A/m when the Nb content is 2 at.%. The process of annealing at a high heating rate distinctly decreases Hc, and all samples present excellent soft magnetic properties. The nanocrystalline alloy exhibits the lowest Hc of 6.4 A/m after annealing at 460 • C for 5 min.

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Thermal stability, dynamic mechanical analysis and nanoindentation behavior of FeSiB(Cu) amorphous alloys

Cited by 49 publications

References 42 publications

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Development of FeSiBNbCu Nanocrystalline Soft Magnetic Alloys with High B s and Good Manufacturability

Effect of Al addition on the glass forming ability, thermal stability and soft magnetic properties of (Fe0.83P0.16Cu0.01)100−xAlx nanocrystalline alloys

Effects of Nb Addition and Heat Treatment on the Crystallization Behavior, Thermal Stability and Soft Magnetic Properties of FeSiBPCuC Alloys

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