Evaluation of the Microstructure and Magnetic Properties of Fe73Me5Y3B19 (Where Me = Ti or Nb) Amorphous Alloys

Archives of Metallurgy and Materials

J. Jędryka¹  M. Szota¹  K. Szota²  S. Lesz³  M. Dośpiał⁴  P. Pietrusiewicz⁴  M. Nabiałek⁴ 

[1] Institute of Material Science Engineering, Cz?stochowa University of Technology, 42-200 Cz?stochowa, 19 Armii Krajowej Av., Poland;Institute of Mathematics and Computer Science, Faculty of Mechanical Engineering and Computer Science, Cz?stochowa University of Technology, 42-200 Cz?stochowa, 19 Armii Krajowej Av., Poland;Institute of Mechanical Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 44-100 Gliwice, 18A Konarskiego Av., Poland;Institute of Physics, Cz?stochowa University of Technology, 42-200 Cz?stochowa, 19 Armii Krajowej Av., Poland

关键词: Keywords: amorphous alloys;    core losses;    magnetic susceptibility;    magnetic disaccommodation;   

DOI  :  10.2478/v10172-012-0014-7

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The results of microstructure and magnetic properties studies of the amorphous Fe73Me5Y3B19 (where Me = Ti or Nb) alloys are presented The samples of the investigated alloys were produced in the form of ribbons with thickness of approximately 30 μm by unidirectional cooling of the liquid material on a rotating copper wheel. Both investigated alloys, in the as-quenched state, were fully amorphous which was verified using a ‘Bruker’ X-ray diffractometer. Static hysteresis loops, measured using ‘LakeShore’ vibrating sample magnetometer (VSM), were typical as for soft magnetic ferromagnets. The Fe73Nb5Y3B19 and Fe73Ti5Y3B19 alloys were characterized by relatively high values of saturation of the magnetization (1.25 T and 1.26 T, respectively) and low coercivity field (16 A/m and 47 A/m, respectively). The core losses obtained for the investigated alloys were significantly lower than for commercially used FeSi transformer steels. Both alloys also exhibited excellent time and temperature stability of the magnetic properties (within the investigated temperature range), as confirmed by measurements of magnetic susceptibility and its disaccommodation.

【 授权许可】

Unknown