Dramatic grain refinement and magnetic softening induced by Ni addition in Fe B based nanocrystalline soft magnetic alloys

Autor:	Tomoyuki Shoji, Z. Li, B. Zang, Richard Parsons, Akira Kato, Julie Karel, Hideshi Kishimoto, Kiyonori Suzuki
Rok vydání:	2020
Předmět:	Materials science Amorphous metal Condensed matter physics Annealing (metallurgy) Mechanical Engineering Metals and Alloys Coercivity Condensed Matter Physics Magnetocrystalline anisotropy Nanocrystalline material Grain size Amorphous solid Mechanics of Materials General Materials Science Softening
Zdroj:	Scripta Materialia. 181:82-85
ISSN:	1359-6462
Popis:	The effects of Ni addition on the grain size (D) and coercivity (Hc) were investigated for nanocrystalline (Fe1-xNix)86B14 (x = 0–0.3) alloys prepared by ultra-rapid annealing of melt-spun amorphous precursors. Ni addition resulted in a structural change of the nanocrystallites from bcc to fcc and an exceptionally small D of 4.2 nm was obtained at x = 0.3. Hc was reduced dramatically from 6.8 A/m at x = 0 to as small as 2.6 A/m at x = 0.1. This significant improvement of magnetic softness is well understood by the effect of Ni on the local magnetocrystalline anisotropy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f65c0821ccb6a2d08e87dc8e81929ea3 https://doi.org/10.1016/j.scriptamat.2020.02.020 Zobrazit plný text záznamu Full Text from ScienceDirect