Crystallization of Fe72B20Si4Nb4 metallic glasses ribbons

• Autorzy: Nowosielski R. , Babilas R. , Griner S. , Dercz G. , Hanc A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper presents a crystallization process of Fe-based amorphous materials. The aim of work is presentation of the influence of annealing temperature on structural changes and magnetic properties of Fe72B20Si4Nb4 metallic glasses. Design/methodology/approach: The studies were performed on metallic glasses as ribbons. Crystallization behaviour of the studied alloy was examined by differential thermal analysis (DTA), X-ray diffraction (XRD), transmission electron microscopy (TEM) and Mössbauer spectroscopy methods. The soft magnetic properties examination of tested material contained magnetic permeability, coercive field, saturation induction and magnetic after-effects measurements. Findings: The XRD, TEM and Mössbauer spectroscopy investigations revealed that the studied alloy in as-cast state was amorphous. A two stage crystallization process was observed for studied material. The first stage of crystallization corresponding to the partial crystallization of .-Fe phase was followed by the formation of iron borides. It has shown that appropriate increasing of annealing temperature, significantly improved soft magnetic properties of examined alloy. The maximum of initial magnetic permeability is correlated with a minimum of coercive field. Practical implications: The soft magnetic properties of metallic glasses can be optimized by applying the appropriate conditions of heat treatment. Originality/value: The applied investigation methods are suitable to determine the changes of structure and the improvement of soft magnetic properties of examined Fe-based alloy in comparison with as-cast state.

Słowa kluczowe

EN

amorphous material; structural relaxation; crystallization; soft magnetic properties

PL

materiał amorficzny; odprężenie strukturalne; krystalizacja; właściwości magnetyczne

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2009
• Tom: Vol. 34, nr 1
• Strony: 15--22
• Opis fizyczny: Bibliogr. 16 poz., rys., tabl.

Twórcy

autor

Nowosielski R.

autor

Babilas R.

autor

Griner S.

autor

Dercz G.

autor

Hanc A.

• Division of Nanocrystalline and Functional Materials and Sustainable Pro-ecological Technologies, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1] T. Kulik, Nanocrystallization of metallic glasses, Journal of Non-Crystalline Solids 287 (2001) 145-161.
• [2] J. Rasek, Some diffusion phenomena in crystalline and amorphous metals, Silesian University Press, Katowice, 2000 (in Polish).
• [3] G. Badura, J. Rasek, Z. Stokłosa, P. Kwapuliński, G. Haneczok, J. Lelątko, L. Pająk, Soft magnetic properties enhancement effect and crystallization processes in Fe78-xNbxSi13B9 (x = 0, 2, 4) amorphous alloys, Journal of Alloys and Compounds 436 (2007) 43-50.
• [4] V. H. Hammond, M. D. Houtz, J. M. O’Reilly, Structural relaxation in a bulk metallic glass, Journal of Non-Crystalline Solids 325 (2003) 179-186.
• [5] W. H. Wang, Crystallization of ZrTiCuNiBe bulk metallic glasses, Annales de Chimie Science des Materiaux 27/5 (2002) 99-105.
• [6] R. Nowosielski, R. Babilas, Structure and magnetic properties of Fe36Co36B19Si5Nb4 bulk metallic glasses, Journal of Achievements in Materials and Manufacturing Engineering 30/2 (2008) 135-140.
• [7] R. Nowosielski, R. Babilas, P. Ochin, Z. Stokłosa, Thermal and magnetic properties of selected Fe-based metallic glasses, Archives of Materials Science and Engineering 30/1 (2008) 13-16.
• [8] D. Szewieczek, J. Tyrlik-Held, S. Lesz, Structure and mechanical properties of amorphous Fe84Nb7B9 alloy during crystallization, Journal of Achievements in Materials and Manufacturing Engineering 24/1 (2007) 87-90.
• [9] D. Szewieczek, T. Raszka, J. Olszewski, Optimisation the magnetic properties of the (Fe1-xCox)73.5Cu1Nb3Si13.5B9 (x=10; 30; 40) alloys, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 31-36.
• [10] S. Lesz, D. Szewieczek, J.E. Frąckowiak, Structure and magnetic properties of amorphous and nanocrystalline Fe85.4Hf1.4B13.2 alloy, Journal of Achievements in Materials and Manufacturing Engineering 19/1 (2006) 29-34.
• [11] R. Nowosielski, R. Babilas, G. Dercz, L. Pająk, W. Skowroński, Microstructure and magnetic properties of BaFe12O19 powder, Journal of Achievements in Materials and Manufacturing Engineering 27/1 (2008) 51-54.
• [12] P. Kwapuliński, J. Rasek, Z. Stokłosa, G. Badura, B. Kostrubiec, G. Haneczok, Magnetic and mechanical properties in FeXSiB (X=Cu, Zr, Co) amorphous alloys, Archives of Materials Science and Engineering 31/1 (2008) 25-28.
• [13] P. Kwapuliński, J. Rasek, Z. Stokłosa, G. Haneczok, Magnetic properties of Fe74Cu1CrxZr3-xSi13B9 amorphous alloys, Journal of Magnetism and Magnetic Materials 254-255 (2003) 413-415.
• [14] J. Wrona, T. Stobiecki, M. Czapkiewicz, R. Rak, T. Ślązak, J. Korecki, C.G. Kim, R-VSM and MOKE magnetometers for nanostructures, Journal of Magnetism and Magnetic Materials 272-276 (2004) 2294-2295.
• [15] P. Gorria, J. S. Garitaonandia, J. M. Barandiarán, Structural and magnetic changes in FeNbCuSiB amorphous alloys during the crystallization process, Journal of Physics: Condensed Matter 8 (1996) 5925-5939.
• [16] J. Torrens-Serra, P. Bruna, J. Rodríguez-Viejo, T. Pradell, M.T. Clavaguera-Mora, Study of crystallization process of Fe65Nb10B25 and Fe70Nb10B20 glassy metals, Reviews on Advanced Materials Sciences 18 (2008) 464-468.