Thermal Stability of Nanocrystalline Soft Magnetic Alloys with Different Inhibitors

2019 ◽  
Vol 821 ◽  
pp. 250-255
Author(s):  
Vladimir S. Tsepelev ◽  
Yuri N. Starodubtsev ◽  
V.Ya. Belozerov
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Nanocrystalline Alloy ◽  
Soft Magnetic ◽  
Magnetic Alloys ◽  
Substitution Solid Solution ◽  
Vacancy Clusters ◽  
Soft Magnetic Alloys ◽  
Thermal Stability Of ◽  
Nanocrystalline Soft Magnetic Alloys

In this work, the effect of different inhibitors on the thermal stability of the magnetic properties in Fe73.5Cu1M3Si13.5B9 nanocrystalline alloys, where M = Nb, W, Mo, was investigated. Nanocrystalline alloy with tungsten has the greatest thermal stability. The change in the magnetic properties in the ageing process was associated with vacancies and vacancy clusters, the formation of which is facilitated by large atoms of inhibitory elements occupying free positions in the substitution solid solution.

EFFECT OF ANNEALING TEMPERATURE ON THE STRUCTURE AND AC MAGNETIC PROPERTIES OF Fe73Cu1Nb3.5-xVxSi13.5B9 (x = 1.0, 1.5, 2.0) NANOCRYSTALLINE SOFT MAGNETIC ALLOYS

2013 ◽  
Vol 27 (19) ◽  
pp. 1341013
Author(s):  
WEI LU ◽  
PING HUANG ◽  
YUXIN WANG ◽  
BIAO YAN
Keyword(s):  
Magnetic Properties ◽  
Strong Influence ◽  
Annealing Temperature ◽  
Iron Loss ◽  
Soft Magnetic ◽  
Magnetic Alloys ◽  
Annealing Temperatures ◽  
Grain Sizes ◽  
Soft Magnetic Alloys ◽  
Nanocrystalline Soft Magnetic Alloys

In this paper, Nb element was partially replaced by V element in Finemet-type Fe 73 Cu 1 Nb 3.5-x V x Si 13.5 B 9 (x = 1, 1.5, 2) alloys and the effect of annealing temperatures on the microstructure and AC magnetic properties of the samples are studied. The annealing temperatures affect the grain sizes of the bcc α- Fe phase greatly. When the annealing temperature is between 540–560°C, the samples have better AC magnetic properties than the samples annealed at other temperatures. The optimized annealing temperature of the studied samples is around 560°C. The coercivity and iron loss of the V2 sample is a little bit higher than that of V1 and V1.5 alloys while the amplitude permeability of V2 alloy is larger than that of V1 and V1.5, which indicate that the content of V element has strong influence on the magnetic properties of nanocrystalline soft magnetic alloys.

scholarly journals Effect of Annealing on the Magnetic Properties of FeCoNiCuNbSiB Soft Magnetic Alloys

2022 ◽  
Vol 8 ◽  
Author(s):  
Z. Li ◽  
K. F. Yao ◽  
T. C. Liu ◽  
X. Li ◽  
S. Wang
Keyword(s):  
Magnetic Properties ◽  
Nanocrystalline Alloy ◽  
Soft Magnetic Property ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Magnetic Alloys ◽  
Soft Magnetic Alloys ◽  
Ni Content ◽  
Crystallization Onset Temperatures ◽  
Crystallization Onset

A series of nanocrystalline soft magnetic alloys with nominal compositions of Fe66.8-xCo10NixCu0.8Nb2.9Si11.5B8 (x = 1–15 at%) were developed and studied. Effects of annealing on the soft magnetic properties, crystallization behavior, and domain structure were investigated. The alloys with higher Ni content were prone to exhibit stronger magnetic anisotropy. The Fe66.8Co10Ni10Cu0.8Nb2.9Si11.5B8 alloy exhibited excellent soft magnetic properties, including the low permeability of 2000, low coercivity of about 0.6 A/m, and low remanence of 2.4 mT, together with a temperature gap of 128 K between two crystallization onset temperatures. It has been found that the Ni content and the annealing process possess significant effects on the soft magnetic property of the nanocrystalline alloys. It shows that the developed Fe66.8Co10Ni10Cu0.8Nb2.9Si11.5B8 nanocrystalline alloy exhibits great potentials for applying in the field of common mode chokes or current transformers, due to its ability to resist the direct current.

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