Heat Treatment of Metals ›› 2022, Vol. 47 ›› Issue (3): 39-43.DOI: 10.13251/j.issn.0254-6051.2022.03.007

• PROCESS RESEARCH • Previous Articles     Next Articles

Effects of longitudinal magnetic annealing and tensile stress on magnetic characteristics and iron loss of 1K101 amorphous alloy ribbon

Gao Jie1, He Chengxu1, Song Wenle2, Yang Fuyao1, Liu Yang1   

  1. 1. Department of Electrical Engineering New Materials, Global Energy Interconnection Research Institute Co., Ltd., State Key Laboratory of Advanced Power Transmission Technology, Beijing 102211, China;
    2. Cangzhou Power Supply Branch, State Grid Hebei Electric Power Co., Ltd., Cangzhou Hebei 061001, China
  • Received:2021-10-26 Revised:2022-01-02 Online:2022-03-25 Published:2022-04-22

Abstract: Effects of longitudinal magnetic annealing and tensile stress on magnetic characteristics and loss of 1K101 amorphous alloy ribbon were investigated. Meanwhile, the magnetic domain morphologies of the alloy were also observed by Kerr method. The results show that macroscopic uniaxial anisotropy can be induced in the quenched 1K101 alloy by tensile stress, which makes the ribbon tend to be more easily magnetized along the stress direction, and the iron loss be decreased. These results are remarkably similar to the ribbon magnetization characteristics after the longitudinal magnetic annealing heat treatment. The magnetic domain observation shows that the original maze domains of the quenched alloy transform into Z-shape arrangement along the stress direction, indicating that the magnetic field energy consumed during magnetization reduces, which plays a key role in soft magnetic performance optimization.

Key words: 1K101 amorphous alloy, tensile stress, magnetic characteristics, iron loss, magnetic domain, anisotropy

CLC Number: