The Structural Relaxation and its Influence on High Field Magnetization Processes

Open access


In this paper the results of the structural and magnetic investigation of Fe61Co10Y8Zr1B20 alloy after solidification and isothermal annealing was presented. The isothermical annealing was carried out at 700 K for 1 h and 770 K for 3.5 h. For the structural investigation was performed by X-ray diffractometer equipped with a copper lamp. The results of (XRD) measurements showed the material in the state after the solidification and heat treatment is amorphous. Static hysteresis loops and initial magnetization curve was measured using vibrating magnetometer (VSM). The quality and quantity of structural defects in the sample after heat treatment was determined by indirect method using analyze the initial magnetization curve in accordance with the theory of Kronmüllera. These studies have shown that the annealing process has big influence to change significantly quantity of defects in amorphous structure as a result, there are changes of magnetic parameters such as saturation magnetization and field μ0Ms coercivity Hc.

[1] A. Inoue, N. Yano, T. Masumoto, Production of metal-zirconium type amorphous wires and their mechanical strength and structural relaxation, J. Mater. Science 19, 3786-3795 (1984).

[2] W.H. Wang, C. Dong, C.H. Shek, Bulk metallic glasses, Materials Science and Engineering R 44, 45-89 (2004).

[3] M. Nabiałek, M. Dospia ł, M. Szota, J. Ol - szewski, S. Walter s, Manufacturing of the bulk amorphous Fe61Co10Zr2+xHf3-xW2Y2B20 alloys (wherex= 1, 2, 3) their microstructure, magnetic and mechanical properties, J. Alloys Compd. 509, S155-S160 (2011).

[4] S. Lesz, R. Babilas, M. Nabiałek, M. Szota, M. Dospia ł, R. Nowosielsk i, The characterization of structure, thermal stability and magnetic properties of Fe-Co-B-Si-Nb bulk amorphous and nanocrystalline alloys, J. Alloys Compd. 509, S197-S201 (2011).

[5] H. Kronmüller, Micromagnetism and microstructure of amorphous alloys, Journal of Applied Physics 52, 3, 1859-1864 (1981).

[6] H. Lange, H. Kronmüller, Low temperature magnetization of sputtered amorphous Fe-Ni-Bfilms, Phys. Stat. sol. (a) 95, 621-633 (1986).

[7] F. Brailsford, Materiały magnetyczne, Poznan 1964 wydawnictwo PWN.

[8] M. Vazquez, W. Fernengel, H. Kronmüller, Approach to magnetic saturation in rapidly quenched amorphous alloys, Phys. Stat. sol. (a) 115, 547-553 (1989).

[9] M. Hirscher, R. Reisser, R. W ürschum, H.-E. Schaefer, H. Kronmüller, Magnetic after-effect and approach to ferromagnetic saturation in nanocrystalline iron Journal of Magnetism and Magnetic Materials 146, 117-122 (1995).

[10] M. Nabiałek, M. Szota, M. Dospiał, P. Pietrusiewicz, S. Walters, Influence of structural defects on the magnetization process in high-magnetic fields in the Fe61Co10Y8Nb1B20 alloy in the form of ribbons and plates, J. of Mag. and Magnet. Mater. 322, 3377-3380 (2010).

[11] M. Nabiałek, M.Dospia ł, M. Szota, P. Pietrusiewicz, Influence of Solidification Speed on Quality and Quantity of Structural Defects in Fe61Co10Zr2.5Hf2.5Y2W2B20 Amorphous Alloy, Materials Science Forum 654-656, 1074-1077 (2010).

[12] T. Holstein, H. Primakof f, Field dependence of the intrinsic domain magnetization ofaferromagnet, Phys. Rev. 58, 1098-1113 (1940).

[13] T. Holstein, H. Primakof f, Magnetization near saturation in polycrystalline ferromagnets, Phys. Rev. 59, 388-394 (1941).

[14] B.G. Shen, R.F. Xu, J.G. Zhao, W.S. Zhan, Effect of composition on Curie temperature, magnetic moment, and high-field susceptibility of amorphous Fe90-xMxZr10( M = V, Cr, Mn, Co, Ni, Cu, Si and B ) alloys Phys. Rev. B 43 (13), 11005-11009 (1991).

[15] K.A. Gallagher, M.A. Willar d, V.N. Zabenkin, D.E. Laughlin, M.E. Mc Henr y, Distributed exchange interaction and temperature dependent magnetization in amorphous Fe88-x Cox Zr7 B4 Co1 alloys;J. Appl. Phys. 85 (8), 5130-5132 (1999).

Archives of Metallurgy and Materials

The Journal of Institute of Metallurgy and Materials Science and Commitee on Metallurgy of Polish Academy of Sciences

Journal Information

IMPACT FACTOR 2016: 0.571
5-year IMPACT FACTOR: 0.776

CiteScore 2016: 0.85

SCImago Journal Rank (SJR) 2016: 0.347
Source Normalized Impact per Paper (SNIP) 2016: 0.740

Cited By


All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 131 90 6
PDF Downloads 58 49 6