LONG Xiang, LI Zhong-ze, CHEN Jinet al. Optimized BLAS and Its Effect on Performance of Parallel Programs[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(1): 79-82. (in Chinese)
Citation: Bi Xiaofang, Zhang Shanqing, Zhu Fangzhen, et al. Improvement of soft magnetic properties of FeCo core alloy by vacuum and field annealing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(10): 944-948. (in Chinese)

Improvement of soft magnetic properties of FeCo core alloy by vacuum and field annealing

  • Received Date: 28 Apr 2004
  • Publish Date: 31 Oct 2004
  • Microstructures and soft magnetic properties of FeCo alloy were investigated in an attempt to improve its soft magnetic properties. Microstructural dependence of the magnetic properties was studied by vacuum annealing at various temperatures. Magnetic field annealing was performed to study the dependence of the coerecivity on the magnetic filed applied during annealing. The field annealing effect was observed only for the alloys after recrystallization, and was increased with increasing the applied field within the range of 2.0×104A/m(250Oe). Coercivity of the FeCo alloys was decreased to 72A/m(0~9Oe) after annealing with a magnetic field of 1.76×104A/m(220Oe) at 850℃. The microscopic mechanism of the field annealing effect was also discussed in terms of magnetostrictive characterizations.

     

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