Influence of boron content on crystallization and magnetic properties of ternary FeNbB amorphous alloys

Stokłosa, Z.; Rasek, J.; Kwapuliński, P.; Haneczok, G.; Chrobak, A.; Lelątko, J.; Pająk, L.

doi:10.1002/pssa.200925356

Cited by 17 publications

(9 citation statements)

References 24 publications

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“…Moreover, alloys with high boron content can form bulk metallic glasses [2,3]. GFA, thermal stability, mechanical and magnetic properties of the Fe-Nb-B glassy ribbons can be varied by adjusting the composition [1,4]. So far, Fe-Nb-B metallic glasses have been studied mainly due to their good soft magnetic and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Atomic structure and magnetic properties of Fe–Nb–B metallic glasses

Kaban

Jóvári

Waske

et al. 2014

Journal of Alloys and Compounds

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a b s t r a c tThe short-range atomic order of ternary Fe-Nb-B metallic glasses has been studied by X-ray diffraction, neutron diffraction, X-ray absorption spectroscopy, and reverse Monte-Carlo simulation. The similarities and differences in the local structure of the Fe-Nb-B glasses and their crystalline counterparts are revealed. The composition dependences for the Curie temperature of the Fe-Nb-B glasses, which increases by substitution of boron for iron at constant niobium content and decreases by substitution of niobium for iron at constant boron concentration, are discussed in the frame of the coordination-bond model.

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Section: Introductionmentioning

confidence: 99%

Atomic structure and magnetic properties of Fe–Nb–B metallic glasses

Kaban

Jóvári

Waske

et al. 2014

Journal of Alloys and Compounds

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“…[13] represented by purple filled triangles, and Stoica et al [2] by purple open triangle. Melt spun ribbons,as reported by Stoklosa et al [14] are marked as purple open diamonds.…”

Section: Resultsmentioning

confidence: 78%

“…[13] represented by purple filled triangles, and Stoica et al [2] by purple open triangle. Melt spun ribbons,as reported by Stoklosa et al [14] are marked as purple open diamonds. Figure 13: Isothermal section at 1450 K of the Fe-Nb-B phase diagram produced by Thermo-Calc using assessed data from Yoshitomi et al [7] Results from the present study are marked (fully amorphous rods and ribbons as filled green stars and squares respectively, crystalline rods and ribbons as open red circles and squares respectively).…”

Section: Resultsmentioning

confidence: 78%

“…The CALPHAD methodology is used to locate areas of low T l , and the data is combined with the atomic size mismatch factor λ, in order to identefy high-GFA areas. Based on the model, BMG of seven different compositions at and around Fe 70.5 Nb 7 B 22.5 were produced by suction casting, along with one glassy ribbon by melt spinning at Fe 84 Nb 2 B 14 . The samples show good agreement with the predictions of the model, both in compositional location and in the thermodynamic stability evaluation.…”

Section: Resultsmentioning

confidence: 99%

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Predictive modeling of glass forming ability in the Fe-Nb-B system using the CALPHAD approach

Brennhaugen

Mao

Louzguine-Luzgin

et al. 2017

Journal of Alloys and Compounds

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Accurate values needed for the most commonly used indicators of good Glass Forming Ability (GFA) in alloys, i.e. the liquidus (T l ), crystallization (T x ) and glass transition (T g ) temperatures, are only available after successful production of the metallic glass of interest. This has traditionally made discovery of new metallic glasses an expensive and tedious procedure, based on trial-and-error methodology.The present study aims at testing the CALPHAD (Computer Coupling of Phase Diagrams and Thermochemistry) approach for predicting GFA in the Fe-Nb-B system by the use of the Thermo-Calc software and the thermodynamic database TCFE7. The melting temperatures and phase stabilities were calculated and combined with data for an atomic size mismatch factor, λ, in order to identify and map potential high-GFA regions. Selected compositions in the identified regions were later produced by suction casting and melt spinning, and the potential success verified using X-Ray Diffraction (XRD). Differential Scanning Calorimetry (DSC) was also used to compare thermodynamic calculations for the model predictions, and evaluate standard GFA indicators.The model is found to fit well with literature data, as well as predict new bulk glassy compositions at and around Fe 70.5 Nb 7 B 22.5 . These results show promise in further predictive use of the model.

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“…Stokªosa [10] reported the inuence of boron content on crystallization and magnetic properties of ternary FeNbB amorphous alloys.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Nb Content on the Thermal, Structural, and Magnetic Properties of FeNbB Ribbons

Zhong

Zuo

et al. 2014

Acta Phys. Pol. A

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Amorphous Fe80−xNbxB20 (x = 5, 10, 15) ribbons were prepared by single-roller melt spinning method. The thermal, structural and magnetic properties of Fe80−xNbxB20 (x = 5, 10, 15) ribbons were investigated using dierential thermal analysis, X-ray diraction, and vibrating sample magnetometer. The thermal stability is the lowest for Fe70Nb10B20 ribbon and the highest for Fe65Nb15B20 ribbon. Along with the increase of Nb content, the supercooled liquid region ∆Tx increases, indicating that the amorphous formation ability improves. The primary stages of crystallization of the three ribbons are dierent. The primary devitrication phases are Fe23B6 type for Fe70Nb10B20 and Fe75Nb5B20 ribbons, and α-Fe type for Fe65Nb15B20 ribbon. Fe80−xNbxB20 (x = 5, 10) ribbons are ferromagnetic and the Fe65Nb15B20 ribbon is paramagnetic. The saturation magnetization (M s) decreases with increasing Nb content.

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Influence of boron content on crystallization and magnetic properties of ternary FeNbB amorphous alloys

Cited by 17 publications

References 24 publications

Atomic structure and magnetic properties of Fe–Nb–B metallic glasses

Atomic structure and magnetic properties of Fe–Nb–B metallic glasses

Predictive modeling of glass forming ability in the Fe-Nb-B system using the CALPHAD approach

The Effect of Nb Content on the Thermal, Structural, and Magnetic Properties of FeNbB Ribbons

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