Hits:

Indexed by:期刊论文

Date of Publication:2008-10-01

Journal:JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Included Journals:SCIE

Volume:15

Issue:5

Page Number:600-604

ISSN No.:1005-8850

Key Words:metallic glass; high magnetic field; isothermal annealing; crystallization behavior

Abstract:The effects of high magnetic field on the crystallization behavior of the Fe78Si13B9 metallic glass ribbon were studied. The samples were isothermal annealed for 30 min under high magnetic field and no field, respectively. Microstructure transformation during crystallization was identified by X-ray diffraction and transmission electron microscopy. It was found that the crystallizations of Fe78Si13B9 metallic glass processed under different conditions were that the precipitation of dendrite alpha-Fe(Si) and spherulite (Fe,Si)(3)B phases forms amorphous matrix and then the metastable (Fe,Si)(3)B phase transforms into the stable Fe2B phase. The grain size of the crystals is smaller and more homogeneous for the isothermal annealed samples under high magnetic field in comparison with that under no field indicating that the crystallization behavior of Fe78Si13B9 metallic glass is suppressed by high magnetic field. (C) 2008 University of Science and Technology Beijing. All rights reserved.