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

Wojciech Maziarz; A. Kolano-Burian; M. Kowalczyk; P. Błyskun; R. Chulist; P. Czaja; M. Szlezynger; A. Wójcik

doi:10.24425/amm.2023.145489

Authors

Wojciech Maziarz Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Krakow, Poland https://orcid.org/0000-0001-8363-9640
A. Kolano-Burian Lukasiewicz Research Network – institute of non-Ferrous Metals, 5 Generała Józefa Sowińskiego str., 44-121 Gliwice, Poland https://orcid.org/0000-0002-3405-4969
M. Kowalczyk Warsaw University of Technology, the Faculty of Materials Science and Engineering, 141 Wołoska stR., 02-507 Warszawa, Poland https://orcid.org/0000-0002-5432-4073
P. Błyskun Warsaw University of Technology, the Faculty of Materials Science and Engineering, 141 Wołoska stR., 02-507 Warszawa, Poland https://orcid.org/0000-0002-6098-1141
R. Chulist Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Krakow, Poland https://orcid.org/0000-0001-6680-9636
P. Czaja Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Krakow, Poland https://orcid.org/0000-0001-8981-1480
M. Szlezynger Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Krakow, Poland https://orcid.org/0000-0002-6230-9340
A. Wójcik Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Krakow, Poland https://orcid.org/0000-0002-1774-751X

DOI:

https://doi.org/10.24425/amm.2023.145489

Abstract

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.

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

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

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