Szczegóły publikacji
Opis bibliograficzny
Influence of Cu content on structure, thermal stability and magnetic properties in $Fe_{72−x}Ni_{8}Nb_{4}Cu_{x}Si_{2}B_{14}$ alloys / Tymon Warski, Adrian Radon, Przemysław Zackiewicz, Patryk Włodarczyk, Marcin Polak, Anna Wójcik, Wojciech Maziarz, Aleksandra Kolano-Burian, Łukasz Hawelek // Materials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1944. — 2021 — vol. 14 iss. 4 art. no. 726, s. 1-13. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 12-13, Abstr. — Publikacja dostępna online od: 2021-02-04. — A. Wójcik - afiliacja: Institute of Metallurgy and Materials Science, Polish Academy of Science
Autorzy (9)
- Warski Tymon
- Radon Adrian
- Zackiewicz Przemysław
- Włodarczyk Patryk
- Polak Marcin
- Wójcik Anna
- Maziarz Wojciech
- Kolano-Burian Aleksandra
- Hawelek Łukasz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 161893 |
|---|---|
| Data dodania do BaDAP | 2025-10-07 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ma14040726 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Materials |
Abstract
The effect of substitution of Fe by Cu on the crystal structure and magnetic properties of Fe72−xNi8Nb4CuxSi2B14 alloys (x = 0.6, 1.1, 1.6 at.%) in the form of ribbons was investigated. The chemical composition of the materials was established on the basis of the calculated minima of thermodynamic parameters: Gibbs free energy of amorphous phase formation ΔGamorph (minimum at 0.6 at.% of Cu) and Gibbs free energy of mixing ΔGmix (minimum at 1.6 at.% of Cu). The characteristic crystallization temperatures Tx1onset and Tx1 of the alpha-iron phase together with the activation energy Ea for the as-spun samples were determined by differential scanning calorimetry (DSC) with a heating rate of 10–100 °C/min. In order to determine the optimal soft magnetic properties, the wound cores were subjected to a controlled isothermal annealing process in the temperature range of 340–640 °C for 20 min. Coercivity Hc, saturation induction Bs and core power losses at B = 1 T and frequency f = 50 Hz P10/50 were determined for all samples. Moreover, for the samples with the lowest Hc and P10/50, the magnetic losses were determined in a wider frequency range 50 Hz–400 kHz. The real and imaginary parts of the magnetic permeability µ′, µ″ along with the cut-off frequency were determined for the samples annealed at 360, 460, and 560 °C. The best soft magnetic properties (i.e., the lowest value of Hc and P10/50) were observed for samples annealed at 460 °C, with Hc = 4.88–5.69 A/m, Bs = 1.18–1.24 T, P10/50 = 0.072–0.084 W/kg, µ′ = 8350–10,630 and cutoff frequency at 8–9.3 × 104 Hz. The structural study of as-spun and annealed ribbons was carried out using X-ray diffraction (XRD) and a transmission electron microscope (TEM).
