Magnetic properties evolution and crystallization behaviour of vacuum- and air-long-term-annealed rapidly quenched Fe80.3Co5Cu0.7B14 alloy

This work aims to investigate the isothermal crystallization behaviour, crystal structure and magnetic properties evolution of long-term (up to 300 h) low temperature (210 and 260 °C) vacuum- and air-annealed Fe 80.3 Co 5 Cu 0.7 B 14  alloy. Before the α-Fe(Co) phase crystallization, the primary rel...

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Bibliographic Details
Published in:Scientific reports 2022-12, Vol.12 (1), p.21387-11, Article 21387
Main Authors: Hawelek, L., Warski, T., Zackiewicz, P., Hudecki, J., Kolano-Burian, A.
Format: Article
Language:English
Subjects:
639/301/1023/1026
639/301/1023/218
639/766/119/997
Air temperature
Annealing
Crystal structure
Crystallization
Evolution
Humanities and Social Sciences
Low temperature
Magnetic properties
Magnetism
multidisciplinary
Science
Science (multidisciplinary)
Vacuum
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Summary:This work aims to investigate the isothermal crystallization behaviour, crystal structure and magnetic properties evolution of long-term (up to 300 h) low temperature (210 and 260 °C) vacuum- and air-annealed Fe 80.3 Co 5 Cu 0.7 B 14  alloy. Before the α-Fe(Co) phase crystallization, the primary relaxation process has been identified at a temperature range up to 340 °C. The relaxation process performed under 210 °C for 300 h did not initiate the crystallization process. However, the topological and compositional short-range rearrangements improved magnetic properties remarkably. Annealing 150 h at 260 °C helps to deliver enough energy to stabilize the glassy state and initiate the crystallization process fully. Structural and magnetic properties evolution of 150 h annealing at 260 °C corresponds to the evolution presented during isochronal 20 min annealing at 310 °C. Magnetic properties Bs = 1.75–1.79 T, Hc 
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-25925-5