The effect of heat treatment on the magnetic properties of Fe82Zr7Nb2Cu1B8 amorphous alloy

• Autorzy: Gondro J.
• Języki publikacji: EN

Abstrakty

EN

urpose: This paper presents the results of investigations into the: microstructure, magnetic properties and thermal stability of amorphous Fe82Zr7Nb2Cu1B8 alloy in the state prevailing after solidification and a multi-stage heat treatment process. Design/methodology/approach: The investigated alloy was obtained in the form of thin ribbons of width 3 mm and thickness approximately 20 μm. The required ingots of alloy were obtained by arc-melting high-purity component elements. The structure and microstructure were examined using Mössbauer spectroscopy and transmission electron microscopy. The microstructure study confirmed the amorphicity of the investigated alloy. The thermal stability was determined on the basis of DSC (Differential Scanning Calorimetry) plots. Also measurements were taken of the magnetic properties, such as magnetic susceptibility and magnetization as a function of temperature and magnetizing field. Findings: Samples of the investigated Fe82Zr7Nb2Cu1B8 alloy were found to be amorphous, both in the as-quenched state and after a multistage thermal annealing process. The sample with the lowest value of hyperfine field induction on the 57Fe was found to possess the lowest value of Curie temperature, it is related to the so-called invar effect. The sample of the investigated alloy that had been subjected to the annealing process, at temperatures of 573 K and 600 K for 15 minutes exhibits the biggest change in the magnetic entropy. Practical implications: The paper disscus the effect of heat treatment on the magnetic properties of Fe82Zr7Nb2Cu1B8 amorphous alloy. Originality/value: The paper presents some researches of the Fe-based amorphous alloys obtained by arc-melting high-purity component elements.

Słowa kluczowe

EN

amorphous alloys; Mössbauer spectroscopy; magnetic properties; differential scanning calorimetry (DSC)

PL

stopy amorficzne; spektroskopia Mössbauera; właściwości magnetyczne; skaningowa kalorymetria różnicowa

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2013
• Tom: Vol. 61, nr 2
• Strony: 244--249
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Gondro J.

• Faculty of Materials Processing Technology and Applied Physics, Institute of Physics, Czestochowa University of Technology, ul. Armii Krajowej 19, 42-201 Częstochowa

Bibliografia

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