Structure and properties of amorphous finemet alloy microwires produced by the Ulitovskii-Taylor method

• Published in: Russian metallurgy Metally Vol. 2015; no. 4; pp. 290 - 294
• Main Authors: Molokanov, V. V., Chueva, T. R., Umnov, P. P., Umnova, N. V., Krutilin, A. V., Shalygina, E. E., Kharlamova, A. M., Shalygin, A. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.04.2015; Springer Nature B.V
• Subjects: Bending; Chemistry and Materials Science; Crystallization; Ferrous alloys; Magnetic fields; Magnetic properties; Materials Science; Metallic Materials; Promising Materials and Technologies; Ribbons; Strain; Tapes (metallic); RUSSIAN Metallurgy; Amorphous Alloy; Amorphous Ribbon; Scan Ning Electron Microscopy; Torsional Stress
• ISSN: 0036-0295; 1555-6255; 1531-8648
• DOI: 10.1134/S0036029515040102

Amorphous Fe 73.5 Si 13.5 B 9 Nb 3 Cu 1 alloy microwires 19–50 μm in diameter are fabricated by the Ulitovskii-Taylor method. The mechanism of crystallization of the amorphous microwires is shown to be analogous to the mechanism of crystallization of an amorphous ribbon made of the same alloy. Microwires up to 30 μm in diameter are found to exhibit ductility upon bending. The near-surface magnetic properties of the microwires are shown to depend on the microwire diameter. The magnetic properties of the amorphous microwires are highly sensitive to elastic tensile and torsional strains in an ac magnetic field.