Microstructure and Soft Magnetic Properties of Fe61Co10Y8Me1B20 (Where Me = W, Zr or Nb) Amorphous Alloys

2012 ◽  
Vol 57 (1) ◽  
pp. 265-270 ◽  
Author(s):  
P. Pietrusiewicz ◽  
M. Nabiałek ◽  
M. Szota ◽  
K. Perduta
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Melt Spinning ◽  
Magnetic Measurements ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Entire Volume ◽  
Magnetic Cores ◽  
Amorphous Nature ◽  
Core Losses

Microstructure and Soft Magnetic Properties of Fe61Co10Y8Me1B20(Where Me = W, Zr or Nb) Amorphous AlloysThe microstructure and the soft magnetic properties of the multi-component Fe61Co10Y8Me1B20amorphous alloys (where Me = W, Zr or Nb) have been investigated; the samples were in the form of ribbons of 3 mm width and 30 μm thickness. The samples were produced using a single-roller melt-spinning method. The alloy composition was investigated using an X-ray diffractometer. The amorphous nature of the entire volume of all the as-quenched samples was confirmed. From the magnetic measurements performed using the ‘LakeShore’ vibrating sample magnetometer, magnetic parameters such as: coercivity, saturation of the magnetization for the as-quenched samples were derived. All of the investigated alloys displayed good soft magnetic properties, making them perfect materials for magnetic cores. The core losses for different values of magnetic field and operating frequency were also measured. It was shown that the investigated alloys featured lower core losses than commercially-used classical FeSi steel.

scholarly journals Optimization of Soft Magnetic Properties in Fe-B and Fe-B-Si Amorphous Alloys Obtained by Melt Spinning Method

2002 ◽  
Vol 102 (2) ◽  
pp. 309-316 ◽  
Author(s):  
P. Kwapuliński ◽  
Z. Stokłosa ◽  
A. Chrobak ◽  
J. Rasek ◽  
G. Haneczok
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Melt Spinning ◽  
Soft Magnetic Properties ◽  
Soft Magnetic

Structural Studies of the Relaxed Amorphous Phase in the Fe81B14Nb5 Alloy

2013 ◽  
Vol 203-204 ◽  
pp. 380-385 ◽  
Author(s):  
Małgorzata Karolus
Keyword(s):  
Magnetic Properties ◽  
Amorphous Phase ◽  
Magnetic Permeability ◽  
Amorphous Alloys ◽  
Melt Spinning ◽  
Soft Magnetic Materials ◽  
Soft Magnetic Properties ◽  
Structural Studies ◽  
Soft Magnetic ◽  
Melt Spinning Technique

Amorphous alloys based on iron, obtained by melt spinning technique, are modern and very promising soft magnetic materials. The thermal annealing at temperatures closed to the crystallization temperature can cause an increase of magnetic permeability more than 10 times i.e. the so called enhancement of soft magnetic properties effect (ESMP). It is usually explained by formation of iron nanocrystallites in amorphous surroundings or by formation of the relaxed amorphous phase. Such a microstructure leads to averaging out of magnetic anisotropy and cause the ESMP.

scholarly journals Effect of Cr Addition on Magnetic Properties and Corrosion Resistance of Optimized Co and Fe-Based Amorphous Alloys

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 304
Author(s):  
Jonghee Han ◽  
Jihyun Hong ◽  
Seoyeon Kwon ◽  
Haein Choi-Yim
Keyword(s):  
Magnetic Properties ◽  
Corrosion Resistance ◽  
Amorphous Alloys ◽  
Melt Spinning ◽  
Alloy System ◽  
Thermomechanical Analysis ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Scanning Calorimetry ◽  
Corrosion Properties

In the Fe-Co alloy system, the addition of Cr improves the glass-forming ability (GFA) with superior soft magnetic properties such as high saturation magnetization (Ms) and low coercivity (Hc). In addition, Cr is considered to be an important factor for improving the corrosion resistance of Fe-based amorphous alloy. Therefore, in the present study, we investigated the GFA, soft magnetic properties, and corrosion resistance of the as-spun ribbons in [Co0.075Fe0.675B0.2Si0.05]100−xCrx (x = 0–8) alloy system. The ribbons were produced using the melt-spinning technique and were characterized by X-ray diffraction, differential scanning calorimetry, thermomechanical analysis, and vibrating sample magnetometer. The Co-Fe-B-Si-Cr alloys exhibited high thermal stability and a high Ms of 0.93–1.53 T. Corrosion properties were evaluated by cyclic voltammetry. The addition of Cr improved the corrosion resistance of the alloys. The alloys with a higher Cr content exhibited a higher corrosion resistance. The optimum combination with soft magnetic properties and corrosion resistance of Fe-co based amorphous alloys can be utilized for extensive fields of application through a variation of Cr contents.

Effects of nanocrystallization upon the soft magnetic properties of Co‐based amorphous alloys

1994 ◽  
Vol 75 (10) ◽  
pp. 6940-6942 ◽  
Author(s):  
P. Quintana ◽  
E. Amano ◽  
R. Valenzuela ◽  
J. T. S. Irvine
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic

Influence of Alloying Additions on Enhancement of Soft Magnetic Properties Effect and Crystallization in FeXSiB (X=Cu, V, Co, Zr, Nb) Amorphous Alloys

2007 ◽  
Vol 130 ◽  
pp. 171-174 ◽  
Author(s):  
Z. Stokłosa ◽  
G. Badura ◽  
P. Kwapuliński ◽  
Józef Rasek ◽  
G. Haneczok ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Crystallization Process ◽  
Annealing Temperature ◽  
Magnetic Measurements ◽  
X Ray Diffraction ◽  
Soft Magnetic ◽  
X Ray ◽  
Second Stage ◽  
Transmission Electron

The crystallization and optimization of magnetic properties effects in FeXSiB (X=Cu, V, Co, Zr, Nb) amorphous alloys were studied by applying X-ray diffraction methods, high resolution transmission electron microscopy (HRTEM), resistometric and magnetic measurements. The temperatures of the first and the second stage of crystallization, the 1h optimization annealing temperature and the Curie temperature were determined for different amorphous alloys. Activation energies of crystallization process were obtained by applying the Kissinger method. The influence of alloy additions on optimization effect and crystallization processes was carefully examined.

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