Open AccessEffect of pulsed magnetic field on the Fe-based amorphous alloys
Author(s) -
Yang Chao,
Ming Yang Li,
Geng Yan,
Jigang Liu
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3453
Subject(s) - materials science , amorphous solid , magnetic field , amorphous metal , grain size , field (mathematics) , spectroscopy , phase (matter) , nuclear magnetic resonance , condensed matter physics , analytical chemistry (journal) , metallurgy , crystallography , physics , chemistry , alloy , mathematics , chromatography , quantum mechanics , pure mathematics
Amorphous Fe78 Si9 B13alloys have been treated by pulsed magnetic field with lowe r frequency. The macrostructural change of amorphous specimens after treatment were observed by mssbauer spectroscopy and TEM etc.This investigation show that nanocrystallization of amorpous Fe78 Si9 B13occurs under the con ditions: pulsed fiel d 16—32kA/m,pulse frequency 20—25 Hz,acting time ≤2min. The grain size of nano crystalline phase Fe(Si) is about 10nm. And, the temperature rise of specimens during the course of the application of pulsed magnetic field is very low(ΔΤ≤20℃).