Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 448, Issue -, Pages 66-74Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2017.08.062
Keywords
Nanocrystalline; Soft magnetic alloys; Al addition; Magnetic field annealing; DC Joule annealing; Magnetic field induced anisotropy
Ask authors/readers for more resources
The effect of minor Al addition on structural, crystallization, soft magnetic behaviour and magnetic field induced anisotropy through DC Joule annealing in (Fe53.95Co29.05)(83)Si1.3B11.7-xNb3Cu1Alx, (X = 0, 1) alloys has been studied. The Al added as-quenched melt spun ribbons show good glass forming ability, better thermo-physical properties like a high T-x1 of 438 degrees C, Tc-am of 435 degrees C and Tc-nc of 906 degrees C, compared to T-x1 of 389 degrees C, Tc-am of 409 degrees C and Tc-nc of 900 degrees C for the alloy without Al addition. The longitudinal magnetic field annealed Al added alloy exhibits low Hc of 12.92 A/m and maximum Ms. of 1.78 T. The better soft magnetic properties of Al added alloy are achieved through a high nucleation density of BCC-FeCo(Al) nanocrystallites having low K-1 and lambda values. The as-quenched alloys possess high magneto-strain exceeding 30 ppm and approach near zero value on nanocrystallization. The longitudinal magnetic field assisted DC Joule annealing, having current density (J) in the range of J = 20-25 A/mm(2) promotes good magnetic softening due to precipitation of 5-35 nm nanocrystallites as explained by extended-random anisotropy model. The Al added alloy shows better magnetic field induced anisotropy (K-u) on nanocrystallization and shows visible change in the shape of hysteresis loop. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available