Synthesis of ferromagnetic Fe-based bulk glassy alloys in the Fe–Nb–B–Y system

Song, Dongsheng; Kim, J.-H.; Fleury, Éric; Kim, W.T.; Kim, D.H.

doi:10.1016/j.jallcom.2004.08.014

Cited by 107 publications

(53 citation statements)

References 16 publications

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“…Table 1 summarizes T g , T x , D cr , ÁT x , T g =T l , and magnetic properties (J s , H c ) for the Fe 76 Si 9 B 10 P 5 BMG and the typical Fe-based ferromagnetic BMGs previously reported. 1,2,6,[15][16][17][18] Here,…”

Section: Resultsmentioning

confidence: 99%

FeSiBP Bulk Metallic Glasses with Unusual Combination of High Magnetization and High Glass-Forming Ability

et al. 2007

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Among many kinds of bulk metallic glasses (BMGs), Fe-based BMGs with good magnetic properties, high strength and low materials cost should have great potential for wide variety of applications. However, the glass-forming metal elements such as Al, Ga, Nb, Mo, Y and so forth in the Fe-based BMGs significantly decrease saturation magnetization (J s ) which is a essential property as soft magnetic materials and also increase the material cost.The coexistence of high Fe content and high glass-forming ability (GFA) has been earnestly desired from academia to industry. We report a novel Fe 76 Si 9 B 10 P 5 (at%) bulk metallic glass with unusual combination of high J s of 1.51 T due to high Fe content and high GFA leading to a glassy rod with a diameter of 2.5 mm despite not-containing any glass-forming metal elements. This alloy composed of familiar and low-priced elements, also exhibiting very excellent magnetic softness and rather high strength, has a great advantage for engineering and industry, and thus should make a contribution to conservation of earth resources and environment through energy saving.

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Section: Resultsmentioning

confidence: 99%

FeSiBP Bulk Metallic Glasses with Unusual Combination of High Magnetization and High Glass-Forming Ability

et al. 2007

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“…It is a group of amorphous materials most oftenly obtained through quenching of the melts obtained by means of alloying of transitive metals (TM: Fe,Ni,Co,Ti,Mo,Nb,V,Cr,Zr,Pd), which possess magnetic and electrical properties, with metaloids (M: B,Si,P,C,Ge) which are supposed to slow down the crystalization process during the solidification of the melts. Large quenching rates of around 10 6 -10 8 K/s enable atomic order not higher than 1 nm in the structure formed in this way (JONG et al, 2005;SANTOS and SANTOS, 2001). …”

Section: Introductionmentioning

confidence: 97%

The correlation between structural relaxation process and the change in magnetic permeability of the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy under the thermal influence

Kalezić-Glišović¹,

Mitrović²,

Maricic³

2017

Kragujevac J Sci

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ABSTRACT. Fast cooling of 10 6 K/s, according to the melt-spinning method, led to the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy formation. X-ray diffraction analysis method (XRD) showed that the obtained alloy is in amorphous state. The differential scanning calorimetry method (DSC) has defined the temperature interval of the crystallization process to be from 510ºC to 540ºC. The same temperature interval has also been confirmed by measuring electrical resistivity dependence over temperature. The heating of alloy sample in the temperature interval from 25ºC to 600ºC, leads to structural changes in the alloy under the thermal influence. Structural relaxation and crystallization processes have been investigated by thermoelectromotive force measurement (TEMF) of thermocouple amorphous alloy -copper. Based on the change in temperature coefficient of TEMF thermocouple annealed at various temperatures, relative changes in electron state density near Fermi level have been determined. It has been shown that the changes in normalized magnetic permeability in correlation with appropriate structural changes, which cause changes in electron state density near Fermi level.

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“…Co-and Fe-based bulk metallic glasses have received considerable attention because of their good soft magnetic properties [1][2][3][4][5][6][7][8][9][10], ultrahigh fracture strength values [1,3,6,7,[9][10][11][12][13][14][15][16] and high corrosion resistance [17,18]. Besides, they have a potential to be used in biomedical applications [17,19,20].…”

Section: Introductionmentioning

confidence: 99%

“…Besides, they have a potential to be used in biomedical applications [17,19,20]. In addition to these attractive properties, they also have very high thermal stability [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][21][22][23]. Additionally, it is known that Co-and Fe-based metallic glasses that contain high amounts of boron can be used as precursors to develop nanocomposites that have ultrahigh hardness values [8,24,25].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Iron Content on Glass Forming Ability and Thermal Stability of Co–Fe–Ni–Ta–Nb–B–Si Bulk Metallic Glass

Hitit

Şahin

2016

Metals

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Abstract:In this study, change in glass forming ability (GFA) and thermal stability of Co-Fe-based bulk metallic glasses were investigated as a function of iron content. Cylindrical samples of alloys with diameters of up to 4 mm were synthesized by a suction casting method in an arc furnace. Structures and thermal properties of the as-cast samples were determined by X-ray diffraction (XRD) and differential scanning calorimetry (DSC), respectively. It was found that the critical casting thickness of the alloys reduced as iron content was increased and cobalt content was decreased. It was determined that GFA parameters, reduced glass transition temperature (T g /T l ) andshow a very good correlation with critical casting thickness values. It was also observed that changing iron content did not effect thermal properties of the alloys.

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Synthesis of ferromagnetic Fe-based bulk glassy alloys in the Fe–Nb–B–Y system

Cited by 107 publications

References 16 publications

FeSiBP Bulk Metallic Glasses with Unusual Combination of High Magnetization and High Glass-Forming Ability

FeSiBP Bulk Metallic Glasses with Unusual Combination of High Magnetization and High Glass-Forming Ability

The correlation between structural relaxation process and the change in magnetic permeability of the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy under the thermal influence

The Effect of Iron Content on Glass Forming Ability and Thermal Stability of Co–Fe–Ni–Ta–Nb–B–Si Bulk Metallic Glass

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