Changes of Structure and Magnetic Properties of Fe66Co24Si3B7 Amorphous Alloy under Heat Treatment

Aleksandr Kotvitckii; Galina S. Kraynova; A.M. Frolov

doi:10.4028/www.scientific.net/AMR.718-720.42

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 718-720Changes of Structure and Magnetic Properties of...

Changes of Structure and Magnetic Properties of Fe₆₆Co₂₄Si₃B₇ Amorphous Alloy under Heat Treatment

Abstract:

In this paper features of structure at the atomic level, magnetic properties, and mechanisms of structural relaxation during thermal annealing of melt-spun ribbon Fe₆₆Co₂₄Si₃B₇ (ribbon thickness is 28 microns) will be discussed. By means of differential scanning calorimetry and X-ray diffraction analysis of melt-spun alloy it has been shown that structural relaxation processes have complex multi-step nature, primarily related with instability of alloy. Using this data it has been shown that magnetic structure-sensitive properties, such as coercivity and magnetic moment, can be considered as structural relaxation indicators in amorphous alloys. The original amorphous material when heated to crystallization temperature partially passes to the crystalline state, causing the increase in residual magnetic moment and coercivity.

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Periodical:

Advanced Materials Research (Volumes 718-720)

Pages:

42-46

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.718-720.42

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Online since:

July 2013

Authors:

Aleksandr Kotvitckii, Galina S. Kraynova, A.M. Frolov

Keywords:

Amorphous Alloy, DSC-Calorimetry, Magnetic Material, Metallic Glass, X-Ray Diffraction (XRD)

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