Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe5Y, Fe23B6, Y2Fe14B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe61+xCo10−xW1Y8B20 Alloys (Where x = 0, 1 or 2)

Vizureanu, Petrica; Nabiałek, Marcin; Sandu, Andrei Victor; Jeż, Bartłomiej

doi:10.3390/ma13040835

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Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe₅Y, Fe₂₃B₆, Y₂Fe₁₄B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe_61+xCo_10−xW₁Y₈B₂₀ Alloys (Where x = 0, 1 or 2)

Petrica Vizureanu

Marcin Nabiałek

^2,*

Andrei Victor Sandu

^1,3,*

and

Bartłomiej Jeż

^2,*

Faculty of Materials Science and Engineering, GheorgheAsachi Technical University of Iasi, Blvd. D. Mangeron 41, 700050 Iasi, Romania

Department of Physics, Faculty of Production Engineering and Materials Technology, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

Romanian Inventors Forum, Str. Sf.P.Movila 3, 700089 Iasi, Romania

Authors to whom correspondence should be addressed.

Materials 2020, 13(4), 835; https://doi.org/10.3390/ma13040835

Received: 20 January 2020 / Revised: 7 February 2020 / Accepted: 9 February 2020 / Published: 12 February 2020

(This article belongs to the Special Issue Advanced Surface Treatment Technologies for Metallic Alloys)

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Abstract

The paper presents the results of research on the structure and magnetic properties of Fe_61+xCo_10−xW₁Y₈B₂₀ alloys (where x = 0, 1 or 2). The alloys were produced using two production methods with similar cooling rates: Injection casting and suction casting. The alloy samples produced were subjected to isothermal annealing at 940 K for 10 min. The structure of the materials was examined using X-ray diffraction. Isothermal annealing has led to the formation of various crystallization products depending on the chemical composition of the alloy and the structure of the alloy in a solidified state. In two cases, the product of crystallization was the hard magnetic phase Y₂Fe₁₄B. However, the mechanism of this phase formation was different in both cases. The magnetic properties of alloys were tested using a vibrating sample magnetometer and a Faraday magnetic balance. It is found that the grain crystallite size of the crystalline phases have a decisive influence on the value of the coercive field (especially in the case of hard magnetic phases). It has been shown that privileged areas can already be created during the production process. Their presence determines the crystallization process. View Full-Text

Keywords: Injection casting method; bulk amorphous alloys; nanocrystalline materials; isothermal annealing; soft magnetic materials

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Vizureanu, P.; Nabiałek, M.; Sandu, A.V.; Jeż, B. Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe₅Y, Fe₂₃B₆, Y₂Fe₁₄B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe_61+xCo_10−xW₁Y₈B₂₀ Alloys (Where x = 0, 1 or 2). Materials 2020, 13, 835. https://doi.org/10.3390/ma13040835

AMA Style

Vizureanu P, Nabiałek M, Sandu AV, Jeż B. Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe₅Y, Fe₂₃B₆, Y₂Fe₁₄B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe_61+xCo_10−xW₁Y₈B₂₀ Alloys (Where x = 0, 1 or 2). Materials. 2020; 13(4):835. https://doi.org/10.3390/ma13040835

Chicago/Turabian Style

Vizureanu, Petrica, Marcin Nabiałek, Andrei V. Sandu, and Bartłomiej Jeż. 2020. "Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe₅Y, Fe₂₃B₆, Y₂Fe₁₄B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe_61+xCo_10−xW₁Y₈B₂₀ Alloys (Where x = 0, 1 or 2)" Materials 13, no. 4: 835. https://doi.org/10.3390/ma13040835

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Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe₅Y, Fe₂₃B₆, Y₂Fe₁₄B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe_61+xCo_10−xW₁Y₈B₂₀ Alloys (Where x = 0, 1 or 2)

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