J. Mater. Sci. Technol. ›› 2025, Vol. 213: 146-152.DOI: 10.1016/j.jmst.2024.06.035

• Research Article • Previous Articles     Next Articles

Synchronously enhancing the plasticity and soft magnetism in Fe-based metallic glasses through memory effect

Weihua Zhoua,1, Shiyuan Zhanga,b,1, Lijian Songc,d, Juntao Huoc,d, Jun-Qiang Wangc,d,*, Yi Lia,*   

  1. aShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    bSchool of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China;
    cCAS Key Laboratory of Magnetic Materials and Devices, Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
    dCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2024-02-23 Revised:2024-05-24 Accepted:2024-06-26 Published:2025-04-01 Online:2025-04-01
  • Contact: *E-mail address: jqwang@nimte.ac.cn (J.-Q. Wang), liyi@imr.ac.cn (Y. Li)
  • About author:1These authors contributed equally to this work.

Abstract: Annealing has been a popular method to improve the soft magnetism of metallic glasses (MGs), which however usually makes MGs brittle and difficult to process. Here, it is demonstrated that the embrittled Fe-based MG can be reductilized and the coercivity can be further lowered through the rejuvenation of memory effect. The synchronous improvement in the plasticity and soft magnetic properties is attributed to the combination effects of releasing much residual stress, decreasing the magnetic anisotropy, and homogenizing the glasses during the rejuvenation process. The current work opens a new perspective to improve the properties of MGs by utilizing the memory effect and holds promising commercial application potential.

Key words: Memory effect, Rejuvenation, Reductilization, Soft magnetism, Fe-based metallic glass