Influence of the as-cast state on the crystallization process and magnetic properties for FeSiBCuNb wires

Conference · Tue Nov 01 04:00:00 EST 1994 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6664559

Marin, P; Vazquez, M ^[1]; Olofinjana, A O; Davies, H A ^[2]

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1. C.S.I.C., Madrid (Spain). Instituto de Ciencia de Materiales
2. Univ. of Sheffield (United Kingdom). Dept. of Engineering Materials

The authors have recently reported studies of the influence of crystallization to a nanophase structure on the magnetic properties of FeSiBCuNb wires. As in the case of ribbons of similar composition, magnetic softening was observed after heating at about 550 C when [alpha]-Fe(Si) nanocrystallites are segregated. The aim of this work is to present results concerning the influence of the as-cast state on the evolution of structure and magnetic and magnetoelastic properties with subsequent thermal treatments. Magnetic and structural studies reveal different as-cast states ranging from completely amorphous to partially crystalline states depending on melt temperature. The most significant observation is that the same degree of magnetic softening (i.e. coercivity, linear magnetostriction...), as previously reported after heating from initially amorphous sample at 550 C, is observed in all samples irrespective of the as-cast state. Nevertheless, in the intermediate states (annealing below 550 C) a different evolution to the nanophase structure is observed for each case.

• OSTI ID: 6664559
• Report Number(s): CONF-940629--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 30:6Pt1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
COHERENT SCATTERING
COPPER ALLOYS
CRYSTALLIZATION
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MAGNETIC PROPERTIES
NIOBIUM ALLOYS
NUMERICAL DATA
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SCATTERING
SILICON ALLOYS
WIRES
X-RAY DIFFRACTION