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Effects of a High Magnetic Field on the Annealing of [(FeCo)BSi]Nb₄ Bulk Metallic Glass.

Title: The Effects of a High Magnetic Field on the Annealing of [(FeCo)BSi]Nb₄ Bulk Metallic Glass.
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Name(s): Jia, Peng, author
Wang, En-Gang, author
Han, Ke, author
Type of Resource: text
Genre: Journal Article
Text
Date Issued: 2016-11-04
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: In contrast with amorphous alloys, nanocrystalline soft magnetic materials show improved thermal stability and higher soft magnetic properties. The nanocrystalline soft magnetic composites are usually fabricated by partially crystallizing from parent amorphous alloys. This paper reports our experimental observation on the sequence of crystallization in metallic glass under a high magnetic field (HMF). An application of a HMF to bulk metallic glass (BMG) of [(FeCo)BSi]Nb₄ prioritizes the precipitation of α-(Fe,Co) phase separated from the subsequent precipitation of borides, (Fe,Co)B₆, upon isothermal annealing at a glass transition temperature. Furthermore, it was observed that, through the annealing treatment under a HMF, a soft magnetic nanocomposite, in which only α-(Fe,Co) phase uniformly distributes in amorphous matrix, was achieved for boron-bearing BMG. The promotion of the α-Fe or (Fe,Co) phase and the prevention of the boride phases during the isothermal annealing process help to produce high-quality soft magnetic nanocomposite materials. The mechanism by which a HMF influences the crystallization sequence was interpreted via certain changes in Gibbs free energies for two ferromagnetic phases. This finding evidences that the annealing treatment under a HMF is suitable for enhancing the soft magnetic properties of high B content (Fe,Co)-based bulk amorphous and nanocrystalline materials.
Identifier: FSU_pmch_28774018 (IID), 10.3390/ma9110899 (DOI), PMC5457204 (PMCID), 28774018 (RID), 28774018 (EID), ma9110899 (PII)
Keywords: Bulk metallic glasses, Crystallization, High magnetic field, Nanocrystalline composite, Soft magnetic material
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5457204.
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_pmch_28774018
Owner Institution: FSU
Is Part Of: Materials (Basel, Switzerland).
1996-1944
Issue: iss. 11, vol. 9

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Jia, P., Wang, E. -G., & Han, K. (2016). The Effects of a High Magnetic Field on the Annealing of [(FeCo)BSi]Nb₄ Bulk Metallic Glass. Materials (Basel, Switzerland). Retrieved from http://purl.flvc.org/fsu/fd/FSU_pmch_28774018