Influence of thermal history on the crystallization behavior of high-B s Fe-based amorphous alloys

Bowen Zang, Lijian Song, Richard Parsons, Jie Shen, Meng Gao, Yan Zhang, Juntao Huo, Yonghao Sun, Fushan Li, Kiyonori Suzuki, Jun Qiang Wang, Weihua Wang

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11 Citations (Scopus)

Abstract

A crucial step in creating cutting-edge soft magnetic alloys is the nanocrystallization of Fe-based amorphous alloys. However, it is unclear how the thermal history affects the nanocrystallization. In this work, high-precision nanocalorimetry and in-situ high-temperature transmission electron microscopy are used to systematically examine how the pre-annealing relaxation process affects the nanocrystallization of Fe-based amorphous alloys. We discover that the glass with more thermal energy storage will crystallize into superb nanocrystalline structures with exceptionally advanced soft magnetism. The soft magnetic properties of Fe-B nanocrystalline alloys can be improved by increasing the relaxation temperature. This finding provides solid and clear evidence for the influences of thermal history on crystallization behavior for Fe-based amorphous alloys, which is helpful for designing advanced soft magnetic nanocrystalline alloys.

Original languageEnglish
Article number256111
Number of pages8
JournalScience China Physics, Mechanics & Astronomy
Volume66
Issue number5
DOIs
Publication statusPublished - May 2023

Keywords

  • amorphous alloys
  • enthalpy relaxation
  • microstructure development
  • nanocrystallization
  • soft magnetic properties

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