Quenching-rate dependence of the magnetic and mechanical properties of nanocrystalline Fe{sub 73.5}Cu{sub 1}Nb{sub 3}Si{sub 13.5}B{sub 9} ribbons obtained by Joule heating

Journal Article · Mon Feb 28 23:00:00 EST 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.312303· OSTI ID:37215

Allia, P; Tiberto, P ^[1]; Baricco, M ^[2]; Knobel, M; Vinai, F ^[3]

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1. Politecnico di Torino (Italy). Dipt. di Fisica
2. Univ. di Torino (Italy). Dipt. di Chimica
3. Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino (Italy)

Four Fe{sub 73.5}Nb{sub 3}Cu{sub 1}Si{sub 13.5}B{sub 9} ribbons obtained by melt spinning with different quenching rates were submitted to direct current (DC) Joule-heating treatment in vacuum. On-line measurements of the electrical resistance were performed in the course of Joule heating in order to study the development of the nanocrystalline phase. The results show that the nanocrystallization kinetics is strongly dependent on the initial degree of structural disorder. The increase in both initial magnetic permeability and brittleness upon nanocrystallization were observed to be affected by the initial topological disorder.

• OSTI ID: 37215
• Report Number(s): CONF-930860--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 2Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
COPPER ALLOYS
CRYSTALLIZATION
EXPERIMENTAL DATA
HEAT TREATMENTS
IRON BASE ALLOYS
MAGNETIC PROPERTIES
MECHANICAL PROPERTIES
METALLIC GLASSES
NIOBIUM ALLOYS
ORDER-DISORDER TRANSFORMATIONS
SILICON ALLOYS