TEM, HREM, L-TEM Studies of Fe-Based Soft Magnetic Melt-Spun Ribbons Subjected to Ultra-Rapid Annealing Process

Autor: W. Maziarz, A. Kolano-Burian, M. Kowalczyk, P. Błyskun, R. Chulist, P. Czaja, M. Szlezynger, A. Wójcik
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Archives of Metallurgy and Materials, Vol vol. 68, Iss No 3, Pp 1165-1170 (2023)
Druh dokumentu: article
ISSN: 2300-1909
DOI: 10.24425/amm.2023.145489
Popis: In the present work, we performed the ultra-rapid annealing (URA) process for amorphous Fe78Ni8B14 melt-spun ribbons in order to obtain fine excellent microstructure assuring the best soft magnetic properties. Several microscopic methods mainly based on transmission electron microscopy (TEM) and Lorentz TEM (L-TEM) were applied for detailed studies of the microstructure and magnetic domains structure. The investigation revealed that the optimized parameters of the URA process (500°C/0.5-5 s) lead to outstanding soft magnetic properties. A mixture containing close to 50% amorphous phase and 50% α-Fe nanocrystals of size up to 30 nm has been already obtained after annealing for 3 s. These annealing conditions appear to be the most suitable in terms of microstructure providing the best magnetic properties.
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