Structure and magnetic properties of Fe₅₆Co₇Ni₇B₂₀Nb₁₀ metallic glasses

• Autorzy: Lesz S. , Nabiałek M. , Nowosielski R.
• Języki publikacji: EN

Abstrakty

EN

Purpose: This paper presents results of investigation of structure and magnetic properties of Fe₅₆Co₇Ni₇B₂₀Nb₁₀ metallic glasses prepared from industrial raw materials. The investigated samples were cast in form of the ribbons. Ribbons were prepared by the single copper roller melt spinning method. The casting conditions include linear speed of copper roller: ν = 18 and ν = 20 m/s and ejection over-pressure of molten alloy: p = 0.02 MPa. Design/methodology/approach: The structure was characterized by X-ray diffraction (XRD) method, transmission electron microscope (TEM), scanning electron microscope (SEM). The magnetic properties contained, coercive force H_c, initial magnetic permeability μ_i and magnetic after-effects Δμ/μ measurements were determined by the coercivemeter and with the use of automatic device for measurements magnetic permeability, respectively. Magnetic hysteresis loops were measured with a vibrating sample magnetometer (VSM) under an applied field up to 2 T. Magnetic properties of saturation magnetization – M_s was determined from achieved magnetic hysteresis loops. Hysteresis loops, recorded using a computer controlled DC hysteresis loop tracer, were used to obtain hysteresis parameters. Findings: The XRD and TEM investigations revealed that the studied ribbons were amorphous. The SEM images showed that studied fractures morphology of ribbons is changing from smooth fracture inside with few veins network in surface freely solidified (shining surface). Character of fracture morphology revealed ductile character of Fe₅₆Co₇Ni₇B₂₀Nb₁₀ ribbons with vein pattern morphology, typical for amorphous alloys. The detailed analysis of data of magnetic properties i.e. M_s. Μ_i and H_c allow to classify the alloy in as quenched state as a soft magnetic material. Research limitations/implications: The results can give more details to understand the relationship between structure and magnetic properties. Thus can be useful for practical application of these alloys. Practical implications: The Fe, Co, Ni-based metallic glasses due to their properties such as excellent magnetic properties are the most attractive and promising for the future applications as new prominent class of engineering and functional material. Thin ribbons of magnetic metallic glasses are currently used in transformer cores, in magnetic sensors, and for magnetic shielding. Higher thicknesses would be useful particularly for the latter two applications. Originality/value: The applied investigation methods are suitable to determine the changes of structure and soft magnetic properties of examined Fe₅₆Co₇Ni₇B₂₀Nb₁₀ metallic glasses with function of sample thickness.

Słowa kluczowe

EN

metallic glasses; structure; magnetic properties

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2012
• Tom: Vol. 55, nr 2
• Strony: 270--274
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Lesz S.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Nabiałek M.

• Institute of Physics, Faculty of Materials Processing Technology and Applied Physics, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Nowosielski R.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

• [1] A. Inoue, A. Takeuchi, Recent development and applications of bulk glassy alloys, International Journal of Applied Glass Science 1/3 (2010) 273-295.
• [2] N.P. Kovalenko, Y.P. Krasny, U. Krey, Physics of amorphous metals, Published House WILEY-VCH, Weinheim, 2001.
• [3] O. Gutfleisch, M.A. Willard, E. Brück, C.H. Chen, S.G. Sankar, J.P. Liu, Magnetic materials and devices for the 21st century: stronger, lighter, and more energy efficient, Advanced Materials 23 (2011) 821-842.
• [4] A.L Greer, E. Ma, Bulk metallic glasses: at the cutting edge of metals research, MRS Bulletin 32 (2007) 611-619.
• [5] W. Klement, R.H. Willens, P. Duwez, Non-crystalline structure in solidified sold-silicon alloys, Nature 187 (1960) 869-870.
• [6] A. Inoue, T. Zhang, H. Koshiba, A. Makino, New bulk amorphous Fe-(Co,Ni)-M-B (M=Zr,Hf,Nb,Ta,Mo,W) alloys with good soft magnetic properties, Journal of Applied Physics 83 (1998) 6326-6328.
• [7] B. Shen, C. Chang, A. Inoue, Formation ductile deformation behavior and soft-magnetic properties of (Fe,Co,Ni)-B-Si-Nb bulk glassy alloys, Intermetallics 15 (2007) 9-16.
• [8] A. Inoue, B.L. Shen, A new Fe-based bulk glassy alloy with outstanding mechanical properties, Advanced Materials 16 (2004) 2189-2192.
• [9] D.Y. Liu, W.S. Sun, H.F. Zhang, Z.Q. Hu, Preparation, thermal stability and magnetic properties of Fe-Co-Ni-Zr-Mo-B bulk metallic glass, Intermetallic 12 (2004) 1149-1152.
• [10] H.J. Sun, L. Li, Y.Z. Fang, J.X. Si, B.L. Shen, Bulk glassy (Fe0.474Co0.474Nb0.052)100-x(B0.8Si0.2)x alloys prepared using commercial raw materials, Journal of Non-Crystalline Solids 358 (2012) 911-914.
• [11] Y.Z. Jia, S.Y. Zeng, S.F. Shan, L.Y. Zhang, C.Z. Fan, B.Q. Zhang, Z.J. Zhan, R.P Liu, W.K. Wang, Effect of copper addition on the glass forming ability of a Fe-Co based alloy, Journal of Alloys and Compounds 440 (2007) 113-116.
• [12] PN-IEC 60050-121:2000, International Electrotechnical Vocabulary, Part 121, Electromagnetism.
• [13] H. Kronmüller, Theory of magnetic after-effects in ferromagnetic amorphous alloys, Philosophical Magazine Part B 48/2 (1983) 127-150.
• [14] S. Lesz, Kwapuliński, R. Nowosielski, Formation and physical properties of Fe-based bulk metallic glasses with Ni addition, Journal of Achievements in Materials and Manufacturing Engineering 31/1 (2008) 35-40.
• [15] S. Lesz, R. Babilas, M. Nabiałek, M. Szota, M. Dośpiał, R. Nowosielski, The characterization of structure, thermal stability and magnetic properties of Fe-Co-B-Si-Nb bulk amorphous and nanocrystalline alloys, Journal of Alloys and Compounds 509S (2011) 197-201.
• [16] A. Inoue, B.L. Shen, Soft magnetic properties of nanocrystalline Fe-Co-B-Si-Nb-Cu alloys in ribbon and bulk forms, Journal of Materials Research 18 (2003) 2799-2806.